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Buy from Amazon $52.71$23.76 $55.00 $43.33 $31.67 $20.00 Nov Jan Mar May Jul Sep Nov Jan Mar May 2015 2016 $34.35, Sep 7 - Sep 15$33.92, Sep 16 - Sep 24$49.26, Sep 20 4:32 pm$33.92, Sep 20 - Sep 23$33.92, Sep 16 - Sep 24$48.47, Sep 22 4:33 am$33.92, Sep 20 - Sep 23$33.92, Sep 16 - Sep 24$36.10, Sep 24 - Sep 25$33.92, Sep 16 - Sep 24$31.95, Sep 24 - Sep 25$36.10, Sep 24 - Sep 25$33.24, Sep 25 - Oct 1$31.95, Sep 24 - Sep 25$36.09, Sep 26 - Sep 29$33.24, Sep 25 - Oct 1$31.16, Sep 27 - Oct 11$49.26, Sep 30 - Oct 2$33.24, Sep 25 - Oct 1$31.16, Sep 27 - Oct 11$49.26, Sep 30 - Oct 2$32.57, Oct 2 - Oct 8$31.16, Sep 27 - Oct 11$49.64, Oct 3 5:55 pm$32.57, Oct 2 - Oct 8$31.16, Sep 27 - Oct 11$46.94, Oct 4 7:58 pm$32.57, Oct 2 - Oct 8$31.16, Sep 27 - Oct 11$49.64, Oct 5 - Oct 10$32.57, Oct 2 - Oct 8$31.16, Sep 27 - Oct 11$49.64, Oct 5 - Oct 10$31.91, Oct 9 - Oct 10$31.16, Sep 27 - Oct 11$49.62, Oct 11 - Oct 15$31.27, Oct 11 - Oct 18$31.16, Sep 27 - Oct 11$49.62, Oct 11 - Oct 15$31.27, Oct 12 1:27 pm$31.27, Oct 11 - Oct 18$49.62, Oct 11 - Oct 15$31.27, Oct 11 - Oct 18$31.00, Oct 13 - Oct 15$49.60, Oct 17 - Oct 20$31.27, Oct 11 - Oct 18$30.08, Oct 17 - Oct 20$49.60, Oct 17 - Oct 20$31.89, Oct 19 - Oct 24$30.08, Oct 17 - Oct 20$49.40, Oct 22 1:41 am$31.89, Oct 19 - Oct 24$29.96, Oct 22 - Oct 27$49.18, Oct 23 - Oct 27$31.89, Oct 19 - Oct 24$29.96, Oct 22 - Oct 27$49.18, Oct 23 - Oct 27$32.52, Oct 25 - Nov 5$29.96, Oct 22 - Oct 27$48.96, Oct 30 - Nov 5$32.52, Oct 25 - Nov 5$31.00, Oct 30 8:41 pm$48.96, Oct 30 - Nov 5$32.52, Oct 25 - Nov 5$29.98, Nov 2 - Nov 30$48.74, Nov 9 - Nov 12$32.84, Nov 9 2:25 am$29.98, Nov 2 - Nov 30$48.74, Nov 9 - Nov 12$33.16, Nov 12 - Nov 17$29.98, Nov 2 - Nov 30$48.52, Nov 15 - Nov 26$33.16, Nov 12 - Nov 17$29.98, Nov 2 - Nov 30$48.52, Nov 15 - Nov 26$33.49, Nov 18 - Nov 20$29.98, Nov 2 - Nov 30$48.52, Nov 15 - Nov 26$33.82, Nov 21 - Nov 26$29.98, Nov 2 - Nov 30$52.71, Nov 27 4:16 pm$34.49, Nov 27 - Dec 4$29.98, Nov 2 - Nov 30$34.49, Nov 27 - Dec 4$29.98, Nov 2 - Nov 30$29.79, Nov 28 - Nov 29$34.49, Nov 27 - Dec 4$29.98, Nov 2 - Nov 30$28.79, Nov 30 - Dec 1$34.49, Nov 27 - Dec 4$29.97, Dec 1 - Dec 4$28.79, Nov 30 - Dec 1$52.71, Dec 3 4:35 pm$34.49, Nov 27 - Dec 4$29.97, Dec 1 - Dec 4$52.50, Dec 4 4:54 pm$34.49, Nov 27 - Dec 4$29.97, Dec 1 - Dec 4$52.49, Dec 5 - Dec 6$34.83, Dec 5 - Dec 10$29.98, Dec 5 - Jan 28$34.83, Dec 5 - Dec 10$32.40, Dec 7 - Dec 18$29.98, Dec 5 - Jan 28$35.17, Dec 12 - Dec 18$32.40, Dec 7 - Dec 18$29.98, Dec 5 - Jan 28$35.52, Dec 20 9:06 pm$29.98, Dec 5 - Jan 28$29.97, Dec 20 9:06 pm$35.87, Dec 29 - Jan 1$32.40, Dec 29 - Jan 5$29.98, Dec 5 - Jan 28$36.22, Jan 2 - Jan 8$32.40, Dec 29 - Jan 5$29.98, Dec 5 - Jan 28$36.22, Jan 2 - Jan 8$29.98, Dec 5 - Jan 28$29.25, Jan 5 10:28 pm$36.22, Jan 2 - Jan 8$32.40, Jan 6 - Jan 26$29.98, Dec 5 - Jan 28$36.51, Jan 9 - Jan 28$32.40, Jan 6 - Jan 26$29.98, Dec 5 - Jan 28$36.51, Jan 9 - Jan 28$29.98, Dec 5 - Jan 28$26.08, Jan 27 1:33 am$36.51, Jan 9 - Jan 28$32.40, Jan 27 - Jan 29$29.98, Dec 5 - Jan 28$36.87, Jan 29 - Feb 2$32.41, Jan 30 4:35 pm$30.11, Jan 29 - Feb 3$36.87, Jan 29 - Feb 2$32.40, Jan 31 - Feb 6$30.11, Jan 29 - Feb 3$37.23, Feb 3 - Feb 7$32.40, Jan 31 - Feb 6$30.45, Feb 4 - Feb 7$37.23, Feb 3 - Feb 7$32.41, Feb 7 2:19 am$30.45, Feb 4 - Feb 7$37.48, Feb 8 - Feb 11$32.40, Feb 8 - Feb 13$30.68, Feb 8 - Feb 11$36.51, Feb 12 - Apr 23$32.40, Feb 8 - Feb 13$29.98, Feb 12 - Mar 2$36.51, Feb 12 - Apr 23$29.99, Feb 14 - Feb 15$29.98, Feb 12 - Mar 2$36.51, Feb 12 - Apr 23$32.40, Feb 16 - Mar 7$29.98, Feb 12 - Mar 2$36.51, Feb 12 - Apr 23$32.40, Feb 16 - Mar 7$24.99, Mar 3 11:10 pm$36.51, Feb 12 - Apr 23$32.40, Feb 16 - Mar 7$29.98, Mar 4 - Mar 12$36.51, Feb 12 - Apr 23$30.00, Mar 8 - Mar 10$29.98, Mar 4 - Mar 12$36.51, Feb 12 - Apr 23$32.40, Mar 11 - Mar 12$29.98, Mar 4 - Mar 12$36.51, Feb 12 - Apr 23$32.38, Mar 13 6:44 pm$29.97, Mar 13 - Apr 24$36.51, Feb 12 - Apr 23$32.21, Mar 15 12:00 am$29.97, Mar 13 - Apr 24$36.51, Feb 12 - Apr 23$32.11, Mar 16 - Mar 17$29.97, Mar 13 - Apr 24$36.51, Feb 12 - Apr 23$32.10, Mar 18 - Mar 26$29.97, Mar 13 - Apr 24$36.51, Feb 12 - Apr 23$29.97, Mar 13 - Apr 24$27.49, Mar 27 - Mar 28$36.51, Feb 12 - Apr 23$29.97, Mar 13 - Apr 24$29.20, Mar 29 12:37 pm$36.51, Feb 12 - Apr 23$32.10, Mar 30 - Apr 6$29.97, Mar 13 - Apr 24$36.51, Feb 12 - Apr 23$31.92, Apr 7 5:28 pm$29.97, Mar 13 - Apr 24$36.51, Feb 12 - Apr 23$31.82, Apr 8 10:12 am$29.97, Mar 13 - Apr 24$36.51, Feb 12 - Apr 23$31.83, Apr 9 7:24 pm$29.97, Mar 13 - Apr 24$36.51, Feb 12 - Apr 23$31.82, Apr 11 - Apr 14$29.97, Mar 13 - Apr 24$36.51, Feb 12 - Apr 23$31.83, Apr 14 9:18 pm$29.97, Mar 13 - Apr 24$36.51, Feb 12 - Apr 23$31.63, Apr 16 7:02 am$29.97, Mar 13 - Apr 24$36.51, Feb 12 - Apr 23$31.64, Apr 17 - Apr 20$29.97, Mar 13 - Apr 24$36.51, Feb 12 - Apr 23$31.63, Apr 21 - Apr 23$29.97, Mar 13 - Apr 24$32.58, Apr 24 11:07 am$32.24, Apr 24 11:07 am$29.97, Mar 13 - Apr 24$32.58, Apr 26 - May 7$31.99, Apr 26 4:05 am$29.97, Apr 26 - Apr 27$32.58, Apr 26 - May 7$31.64, Apr 27 - Apr 28$29.97, Apr 26 - Apr 27$32.58, Apr 26 - May 7$31.64, Apr 30 - May 2$29.82, Apr 28 - May 27$32.58, Apr 26 - May 7$31.63, May 3 12:13 pm$29.82, Apr 28 - May 27$32.58, Apr 26 - May 7$31.64, May 4 - May 6$29.82, Apr 28 - May 27$32.58, Apr 26 - May 7$29.82, Apr 28 - May 27$26.93, May 7 11:10 pm$30.73, May 10 - May 13$30.72, May 10 3:33 am$29.82, Apr 28 - May 27$31.61, May 11 - May 13$30.73, May 10 - May 13$29.82, Apr 28 - May 27$32.27, May 15 - May 16$31.60, May 15 4:06 am$29.82, Apr 28 - May 27$32.27, May 15 - May 16$31.61, May 16 11:51 pm$29.82, Apr 28 - May 27$32.58, May 19 3:56 am$29.82, Apr 28 - May 27$28.27, May 19 - May 25$32.90, May 21 10:06 am$29.82, Apr 28 - May 27$28.27, May 19 - May 25$33.22, May 23 - May 25$29.82, Apr 28 - May 27$28.27, May 19 - May 25$33.55, May 27 - May 30$30.77, May 27 7:33 pm$29.82, Apr 28 - May 27$33.55, May 27 - May 30$29.90, May 30 - Jun 14$29.41, May 30 - Jun 1$33.88, Jun 1 - Jun 6$29.90, May 30 - Jun 14$29.41, May 30 - Jun 1$33.88, Jun 1 - Jun 6$29.90, May 30 - Jun 14$29.37, Jun 3 7:49 pm$33.88, Jun 1 - Jun 6$29.90, May 30 - Jun 14$29.33, Jun 6 4:53 am$34.21, Jun 8 10:42 am$29.90, May 30 - Jun 14$29.27, Jun 8 10:42 am$34.55, Jun 10 2:07 pm$29.90, May 30 - Jun 14$29.23, Jun 10 2:07 pm$34.89, Jun 12 - Jun 14$29.90, May 30 - Jun 14$29.19, Jun 12 1:45 pm$34.89, Jun 12 - Jun 14$29.90, May 30 - Jun 14$29.24, Jun 14 12:44 pm$35.23, Jun 16 11:00 am$29.89, Jun 16 - Jul 22$29.20, Jun 16 11:00 am$35.58, Jun 18 - Jun 24$29.89, Jun 16 - Jul 22$29.16, Jun 18 9:04 am$35.58, Jun 18 - Jun 24$29.89, Jun 16 - Jul 22$29.13, Jun 20 5:17 am$35.58, Jun 18 - Jun 24$29.89, Jun 16 - Jul 22$29.11, Jun 22 1:48 am$35.58, Jun 18 - Jun 24$29.89, Jun 16 - Jul 22$29.08, Jun 24 12:01 am$35.18, Jun 25 - Jun 30$29.89, Jun 16 - Jul 22$29.04, Jun 25 10:39 pm$35.18, Jun 25 - Jun 30$29.89, Jun 16 - Jul 22$28.99, Jun 27 11:07 pm$35.18, Jun 25 - Jun 30$29.89, Jun 16 - Jul 22$29.27, Jun 30 - Jul 25$31.19, Jul 2 - Jul 6$29.89, Jun 16 - Jul 22$29.27, Jun 30 - Jul 25$30.10, Jul 9 - Jul 22$29.89, Jun 16 - Jul 22$29.27, Jun 30 - Jul 25$29.70, Jul 24 - Jul 29$29.69, Jul 24 - Jul 29$29.27, Jun 30 - Jul 25$29.70, Jul 24 - Jul 29$29.69, Jul 24 - Jul 29$28.87, Jul 27 6:03 pm$29.70, Jul 24 - Jul 29$29.69, Jul 24 - Jul 29$23.76, Jul 29 1:22 pm$32.19, Jul 31 - Aug 11$29.89, Jul 31 - Aug 11$28.87, Jul 31 - Aug 7$32.19, Jul 31 - Aug 11$29.89, Jul 31 - Aug 11$29.27, Aug 9 - Aug 13$32.51, Aug 13 - Aug 15$29.27, Aug 9 - Aug 13$29.18, Aug 13 - Aug 17$32.51, Aug 13 - Aug 15$29.18, Aug 13 - Aug 17$25.51, Aug 15 8:41 am$32.83, Aug 17 - Aug 22$29.27, Aug 17 - Aug 22$29.18, Aug 13 - Aug 17$32.83, Aug 17 - Aug 22$29.27, Aug 17 - Aug 22$27.93, Aug 19 12:05 am$32.83, Aug 17 - Aug 22$29.27, Aug 17 - Aug 22$29.18, Aug 20 - Aug 22$33.15, Aug 24 - Aug 30$29.89, Aug 24 - Jan 12$27.67, Aug 24 5:10 pm$33.15, Aug 24 - Aug 30$31.22, Aug 26 - Sep 1$29.89, Aug 24 - Jan 12$33.48, Sep 1 - Sep 5$31.22, Aug 26 - Sep 1$29.89, Aug 24 - Jan 12$33.48, Sep 1 - Sep 5$29.89, Aug 24 - Jan 12$29.35, Sep 3 7:39 am$33.48, Sep 1 - Sep 5$29.89, Aug 24 - Jan 12$29.17, Sep 5 7:07 am$33.81, Sep 7 - Sep 11$29.89, Aug 24 - Jan 12$29.00, Sep 7 5:49 am$33.81, Sep 7 - Sep 11$29.89, Aug 24 - Jan 12$28.83, Sep 9 4:32 am$33.81, Sep 7 - Sep 11$29.89, Aug 24 - Jan 12$28.65, Sep 11 3:16 amOOS $33.81, Sep 13 2:45 am$29.89, Aug 24 - Jan 12$28.48, Sep 13 2:45 am$34.14, Sep 15 - Sep 20$29.89, Aug 24 - Jan 12$28.31, Sep 15 1:48 am$34.14, Sep 15 - Sep 20$29.89, Aug 24 - Jan 12$28.15, Sep 17 1:13 am$34.14, Sep 15 - Sep 20$29.89, Aug 24 - Jan 12$27.99, Sep 19 12:33 am$34.14, Sep 15 - Sep 20$29.89, Aug 24 - Jan 12$27.85, Sep 20 11:59 pm$34.48, Sep 23 - Sep 27$29.89, Aug 24 - Jan 12$27.69, Sep 23 12:07 am$34.48, Sep 23 - Sep 27$31.00, Sep 25 12:09 am$29.89, Aug 24 - Jan 12$34.48, Sep 23 - Sep 27$30.66, Sep 27 12:07 am$29.89, Aug 24 - Jan 12$34.82, Sep 29 - Oct 1$30.33, Sep 29 - Oct 1$29.89, Aug 24 - Jan 12$35.16, Oct 3 - Oct 7$30.34, Oct 3 2:15 am$29.89, Aug 24 - Jan 12$35.16, Oct 3 - Oct 7$30.33, Oct 5 3:58 am$29.89, Aug 24 - Jan 12$35.16, Oct 3 - Oct 7$30.34, Oct 7 6:23 am$29.89, Aug 24 - Jan 12$35.51, Oct 9 - Oct 13$30.33, Oct 9 - Oct 13$29.89, Aug 24 - Jan 12$35.86, Oct 15 - Oct 21$30.34, Oct 15 - Oct 19$29.89, Aug 24 - Jan 12$35.86, Oct 15 - Oct 21$30.33, Oct 21 - Oct 23$29.89, Aug 24 - Jan 12$36.15, Oct 23 - Nov 21$30.33, Oct 21 - Oct 23$29.89, Aug 24 - Jan 12$36.15, Oct 23 - Nov 21$30.34, Oct 25 8:50 am$29.89, Aug 24 - Jan 12$36.15, Oct 23 - Nov 21$29.89, Aug 24 - Jan 12$29.83, Oct 27 8:17 am$36.15, Oct 23 - Nov 21$29.89, Aug 24 - Jan 12$29.61, Oct 29 8:26 am$36.15, Oct 23 - Nov 21$29.89, Aug 24 - Jan 12$29.37, Oct 31 9:13 am$36.15, Oct 23 - Nov 21$29.89, Aug 24 - Jan 12$29.17, Nov 2 9:18 am$36.15, Oct 23 - Nov 21$29.89, Aug 24 - Jan 12$29.01, Nov 4 10:33 am$36.15, Oct 23 - Nov 21$30.33, Nov 6 - Nov 10$29.89, Aug 24 - Jan 12$36.15, Oct 23 - Nov 21$30.34, Nov 12 - Nov 26$29.89, Aug 24 - Jan 12$36.51, Nov 23 - Nov 26$30.34, Nov 12 - Nov 26$29.89, Aug 24 - Jan 12$36.87, Nov 28 - Dec 3$30.33, Nov 28 - Nov 30$29.89, Aug 24 - Jan 12$36.87, Nov 28 - Dec 3$30.34, Dec 3 8:28 am$29.89, Aug 24 - Jan 12$37.23, Dec 5 - Dec 10$30.33, Dec 5 - Dec 26$29.89, Aug 24 - Jan 12$37.48, Dec 13 - Mar 10$30.33, Dec 5 - Dec 26$29.89, Aug 24 - Jan 12$37.48, Dec 13 - Mar 10$30.32, Dec 29 1:08 am$29.89, Aug 24 - Jan 12$37.48, Dec 13 - Mar 10$30.31, Dec 31 - Jan 20$29.89, Aug 24 - Jan 12$37.48, Dec 13 - Mar 10$30.31, Dec 31 - Jan 20$29.87, Jan 15 - Apr 9$37.48, Dec 13 - Mar 10$29.87, Jan 15 - Apr 9$28.49, Jan 22 - Feb 2$37.48, Dec 13 - Mar 10$30.31, Feb 4 - Mar 10$29.87, Jan 15 - Apr 9$37.10, Mar 16 11:27 am$29.87, Jan 15 - Apr 9$27.98, Mar 16 11:27 am$37.48, Mar 22 12:24 pm$29.87, Jan 15 - Apr 9$27.68, Mar 22 12:24 pm$37.10, Mar 28 8:07 am$29.87, Jan 15 - Apr 9$27.98, Mar 28 8:07 am$37.48, Apr 3 - Apr 9$29.87, Jan 15 - Apr 9$27.92, Apr 3 4:44 am$37.48, Apr 3 - Apr 9$30.31, Apr 9 12:19 am$29.87, Jan 15 - Apr 9 7,454175,254 234,375 156,250 78,125 Nov Jan Mar May Jul Sep Nov Jan Mar May 2015 2016

Price Details

New

Latest $37.48 1 day ago
Highest $37.48 Apr 3, '16
Lowest $29.70 Jul 24, '15
Average $37.33 (30d avg)
$37.43 (90d avg)
$37.05 (180d avg)
$35.14 (365d avg)
$35.07 (Lifetime average)
Added Sep 7, 2014

3rd Party New

Latest $29.87 1 day ago
Highest $33.92 Sep 20, '14
Lowest $24.99 Mar 3, '15
Average $29.87 (30d avg)
$29.87 (90d avg)
$29.88 (180d avg)
$29.85 (365d avg)
$29.98 (Lifetime average)
Added Sep 7, 2014

3rd Party Used

Latest $30.31 1 day ago
Highest $52.71 Dec 3, '14
Lowest $23.76 Jul 29, '15
Average $28.41 (30d avg)
$29.42 (90d avg)
$29.82 (180d avg)
$29.73 (365d avg)
$32.57 (Lifetime average)
Added Sep 7, 2014

Sales Rank

30 day average: 37,071
90 day average: 39,461

Product Description

Attorney David Pressman and updater Thomas Tuytschaevers takes you through the entire patent process, providing scrupulously updated information and clear instructions to help you:

determine if you can patent your invention

understand patent law

evaluate the commercial potential of your idea

perform your own patent search

file a provisional patent application

prepare a formal patent application

respond to patent examiners

amend an application

enforce and maintain your patent

market and license your invention

Thoroughly updated to reflect the latest changes in intellectual property law, this edition provides the latest U.S. Patent and Trademark Office rules and forms. It includes up-to-date discussions of the new "first to file" rule, which has to revolutionized patent law.

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