Re-examinations - 1990-present

Updated: May 16, 2023

Re-examinations - 1990-present
Re-exam No. Patent No. Request Date Certificate Mailed Date/Status
RX-1/90 1,271,207 September 4, 1990 April 14, 1992
RX-2/90 1,264,107 September 21, 1990 May 12, 1992
RX-3/90 1,272,996 December 21, 1990 July 20, 1992
RX-4/91 1,269,028 February 28, 1991 June 1, 1992
RX-5/91 1,278,701 September 19, 1991 August 24, 1992
RX-6/92 1,285,109 June 23, 1992 December 14, 1993
RX-7/93 1,248,930 September 24, 1993 Fee Refunded February 10, 1994. Patent Law not applicable.
RX-8/94 1,311,707 February 8, 1994 October 20, 1994
RX-9/95 1,307,051 February 8, 1995 Terminated by the Board. No substantial new question raised. Letter mailed May 9, 1995.
RX-10/95 1,286,855 May 18, 1995 July 29, 1996
RX-11/95 1,324,237 May 30, 1995 August 8, 1996
RX-12/95 2,067,683 June 9, 1995 July 5, 1996
RX-13/96 1,324,237 March 8, 1996 Terminated by the Board. No substantial new question has been raised. Letter mailed August 8, 1996.
RX-14/96 1,286,855 April 23, 1996 Terminated by the Board. No substantial new question has been raised. Letter mailed July 24, 1996.
RX-15/96 2,101,884 April 19, 1996
May 3, 1996
Amendment
Terminated by the Board. No substantial new question has been raised. Letter mailed September 3, 1996.
RX-16/96 2,049,534 May 22, 1996 January 14, 1997
RX-17/97 1,321,525 April 14, 1997 October 30, 1998
RX-18/97 2,057,644 May 16, 1997 June 17, 1998
RX-19/97 2,105,636 July 16, 1997 July 22, 1998
RX-20/98 1,319,072 March 12, 1998 March 18, 1999
RX-21/99 2,086,794 March 31, 1999 November 8, 2000
RX-22/99 2,086,730 December 6, 1999 November 7, 2000
RX-23/99 2,070,274 December 14, 1999 Patent lapsed on June 2 2000 for failure to pay the required maintenance fee. Letter mailed July 6, 2000.
RX-24/00 2,204,977 October 8, 2000 August 21, 2001/Cancelled. New one issued February 6, 2002.
RX-25/01 2,041,521 May 9, 2001 Terminated by the Board. No substantial new question has been raised. Letter mailed May 9, 2001.
RX-26/01 2,130,471 March 27, 2001 January 31, 2003
RX-27/02 1,216,871 April 4, 2002 Not open to re-examination - Old Act.
RX-28/03 2,136,053 January 13, 2003 July 20, 2004
RX-29/03 2,145,542 January 2, 2003 November 10, 2003
RX-30/03 2,147,706 May 21, 2003 October 25, 2004
RX-31/03 2,148,521 June 24, 2003 September 29, 2004
RX-32/03 2,249,513 July 7, 2003 May 12, 2004
RX-33/04 2,093,422 May 1, 2004 November 16, 2005
RX-34/04 2,360,005 June 3, 2004 Terminated by the Board. No substantial new question has been raised. Letter mailed October 27, 2004.
RX-35/04 2,143,685 July 7, 2004 February 21, 2006
RX-36/04 2,254,284 July 9, 2004 September 30, 2005
RX-37/05 2,187,474 January 25, 2005 November 16, 2005
RX-38/05 2,364,968 July 19, 2005 Terminated by the Board. No substantial new question of patentability. Letter mailed November 15,  2005
RX-39/05 2,348,328 July 19,  2005 Terminated by the Board. No substantial new question of patentability.  Letter mailed November 15, 2005.
RX-40/05 2,115,751 August 4, 2005 February 28, 2007
RX-41/05 2,188,870 October 11, 2005 September 26, 2006
RX-42/05 2,189,029 October 11, 2005 September 26, 2006
RX-43/05 2,300,818 October 11, 2005 September 14, 2006
RX-44/06 2,258,339 February 3, 2006 March 12, 2007
RX-45/06 2,002,806 February 21, 2006 July 17, 2007
RX-46/06 2,233,265 August 14, 2006 September 19, 2007
RX-47/07 2,364,613 March 21, 2007 Terminated by the Board. No substantial new question of patentability has been raised. Letter mailed June 1, 2007.
RX-48/07 2,373,527 August 29, 2007 Terminated by the Board. This request is not admissible under Subsection 48.1(2) of the Patent Act
RX-49/07 2,456,455 August 31, 2007 March 13, 2009
RX-50/07 2,359,812 October 30, 2007 Terminated by the Board. No substantial new question of patentability has been raised. Letter mailed February 15, 2008.
RX-51/08 2,373,527 July 23, 2008 April 3, 2009
RX-52/08 2,425,162 August 6, 2008 October 1, 2009
RX-53/08 2,458,284 September 9, 2008 January 18, 2010
RX-54/08 2,450,774 September 19, 2008 Terminated by the Board. No substantial new question of patentability has been raised. Letter mailed March 2, 2009.
RX-55/08 2,489,738 November 18, 2008 Terminated by the Board. No substantial new question of patentability. Letter mailed April 28, 2009.
RX-56/08 2,188,746 November 27, 2008 November 5, 2010
RX-57/09 2,084,013 December 11, 2008 Court ordered stay on January 8 2010. In accordance with the direction received from the Federal Court dated August 7, 2012, the stay remains in force and has the effect of terminating the re-examination. The Board will not take further action in respect of this case.
RX-58/09 2,464,983 September 8, 2009 Terminated by the Board. No substantial new question of patentability. Letter mailed December 22, 2009.
RX-59/09 2,107,134 October 14, 2009 Terminated by the Board. No substantial new question of patentability. Letter mailed March 10, 2010.
RX-60/10 2,668,777 May 6, 2010 September 27, 2011
RX-61/10 2,668,777 April 16, 2010 September 27, 2011
RX-62/11 2,210,450 November 24, 2010 Terminated by the Board. No substantial new question of patentability. Letter mailed June 14, 2011.
RX-63/11 2,575,080 December 14, 2010 Terminated by the Board. No substantial new question of patentability.  Letter mailed June 27, 2011.
RX-64/11 2,465,538 March 10 2011 Terminated by the Board. Request not admissible under subsection 48.1(2) of the Patent Act. Letter mailed March 29, 2011.
RX-65/11 2,448,699 February 2, 2011 Decembernbsp;8,  20, 11
RX-66/11 2,550,749 April 18, 2011 Terminated by the Board. No substantial new question of patentability. The submitted prior art does not render these claims anticipated or obvious. Letter mailed June 30, 2011.
RX-67/11 2,421,384 August 15, 2011 October 29, 2012
RX-68/11 2,465,538 July 8, 2011 Terminated by the Board. No substantial new question of patentability has been raised. Letter mailed December 16,  2011.
RX-69/11 2,556,685 October  7,  2011 April  17,  2012
RX 2,193,519 January  10,  2012 April  26,  2013
RX-71/12 2,230,262 April  3,  2012 May  21,  2013
RX-72/12 2,124,963 June  29, 2012 June  26, 2013
RX-73/12 2,134,617 July  26, 2012 Terminated by the Board. No substantial new question of patentability.  Letter mailed January 15, 2013.
RX-74/12 2,219,513 November 21, 2012 October 7, 2013
RX-75/12 2,604,280 November 21, 2012 August 29, 2013
RX-76/13 2,735,347 February 8, 2013 November 5, 2013
RX-77/13 2,420,949 May 10, 2013 December 22, 2014
RX-78/13 2,381,165 June 14, 2013 October 22, 2014
RX-79/13 2,452,515 September 3, 2013 Terminated by the Board. No substantial new question of patentability.  Letter mailed February 6, 2014.
RX-80/14 2,635,852 January 14, 2014 October 1, 2014
RX-81/14 2,657,861 January 27, 2014 March 12, 2015
RX-82/14 2,388,294 February 26, 2014 November 19, 2014
RX-83/14 2,607,375 May 1, 2014 April 28, 2017
RX-84/14 2,599,773 December 12, 2014 July 20, 2016
RX-85/15 2,810,121 January 23, 2015 September 21, 2016
RX-86/15 2,687,802 January 8, 2015 July 20, 2016.
RX-87/15 2,746,152 April 16,  2015 Terminated by the Board. No substantial new question of patentability.  Letter mailed September 11, 2015.
RX-88/15 2,797,761 May 4, 2015 October  24, 2016
RX-89/15 2,755,824 August 18, 2015 Terminated. Not a proper request. Letter mailed October 5, 2015.
RX-90/15 2,708,890 September 11, 2015 February 22, 2017
RX-91/15 2,738,767 September 11 2015 February 22, 2017
RX-92/15 2,743,603 September 11, 2015 February 22, 2017
RX-93/15 2,778,555 December 18, 2015 August 11, 2017
RX-94/15 2,822,562 December  24, 2015 Court ordered stay of re-exam October 6, 2016.
RX-95/15 2,600,215 December 31, 2015 Terminated. No substantial new question of patentability. Letter mailed June 3, 2016.
RX-96/16 2,788,206 January 15, 2016 June  29, 2017
RX-97/16 2,729,619 February 22, 2016 Terminated. Not a proper request. Letter mailed April 22, 2016.
RX-98/16 2,233,739 March  21, 2016 September 20, 2017
RX-99/16 2,729,619 August 5, 2016 November 30, 2017
RX-100/17 2,876.770 January 25, 2017 July 13, 2018
RX-101/17 2,719,528 May 16, 2017 September 25, 2017
RX-102/17 2,381,165 May 12, 2017 April  17, 2018
RX-103/17 2,340,185 June 22, 2017 December 21, 2018
RX-104/17 2,723,630 June 22, 2017 October 1, 2019
RX-105/17 2,751,174 June 27, 2017 Terminated. No substantial new question of patentability. Letter mailed October 20,  2017.
RX-106/17 2,782,487 July 19, 2017 December 21, 2018
RX-107/17 2.699.556 October 17, 2017 June 15, 2018
RX-108/17 2.755,824 October 2, 2017 February 21, 2019
RX-109/17 2,753,273 December 19, 2017 August 7, 2019
RX-110/17 2,818,250 December 21, 2017 July 26, 2019
RX-111/18 2,902,498 January 12, 2018 November 30, 2018
RX-112/18 2,704,692 February 20, 2018 Terminated. No substantial new question of patentability. Letter mailed June 1, 2018.
RX-113/18 2,871,354 February 23, 2018 June 12, 2019
RX-114/18 2,383,341 March 9, 2018 Fee missing. Letter mailed March  22 ,2018. Patent deemed expired on August 31, 2020.
RX-115/18 2.909,296 April 4, 2018 May 3, 2019
RX-116/18 2,867,736 March 29, 2018 October 10, 2019
RX-117/18 2,871,354 May 2, 2018 June 12, 2019
RX-118/18 2,691,324 June 22, 2018 Terminated. No substantial new question of patentability. Letter mailed October 5, 2018.
RX-119/18 2,731,620 July 24, 2018 July 25, 2019
RX-120/18 2,927,080 August 28, 2018 Missing fee and duplicate copy.
RX-121/18 2,361,269 October 22, 2018 December 19, 2019
RX-122/18 2,753,156 November 2, 2018 September 18, 2020
RX-123/18 2,719,830 December 7, 2018 June 5, 2020
RX-124/19 2,491,858 January 31, 2019 Terminated. No substantial new question of patentability. Letter mailed  June 3, 2019.
RX-125/19 2,969,282 February 4, 2019 July 31, 2020
RX-126/19 2,600,265 March 6, 2019 October 5, 2020
RX-127/19 2,785,203 April 12, 2019 October 23, 2020
RX-128/19 2,855,060 May 16, 2019 January 18, 2023
RX-129/19 2,926,904 May 17, 2019 December 18, 2020
RX-130/19 2,702,437 July 2, 2019 Terminated. No substantial new question of patentability. Letter mailed October 24, 2019.
RX-131/19 2,760,802 September 23, 2019 October 28, 2022
RX-132/19 2,686,159 October 18, 2019 July 3, 2020
RX-133/19 2,882,181 October 31, 2019 June 18, 2021
RX-134/19 2,829,473 December 23, 2019 October 9, 2020
RX-135/20 2,937,689 January 2, 2020 Terminated. No substantial new question of patentability. Letter mailed May 8, 2020.
RX-136/20 2,906,217 February 21, 2020 Terminated. No substantial new question of patentability. Letter mailed August 11, 2020.
RX-137/20 2,949,039 February 26, 2020 September 10, 2021
RX-138/20 2,770,216 May 12, 2020 Terminated. No substantial new question of patentability. Letter mailed October 9, 2020.
RX-139/20 2,775,701 June 2, 2020 May 13, 2022
RX-140/20 2,957,167 June 16, 2020 Terminated. No substantial new question of patentability. Letter mailed September 25, 2020.
RX-141/20 2,985,032 August 7, 2020 January 18, 2023
RX-142/20 2,508,258 November 4, 2020 December 17, 2021
RX-143/21 2,591,384 January 28, 2021 Terminated. No substantial new question of patentability. Letter mailed May 4, 2021.
RX-144/21 2,838,151 March 11, 2021 Terminated. No substantial new question of patentability. Letter mailed July 8, 2021.
RX-145/21 2,646,163 March 31, 2021 May 6, 2022
RX-146/21 3,070,751 May 3, 2021 Terminated. No substantial new question of patentability. Letter mailed August 26, 2021
RX-147/21 2,348,348 May 28, 2021 Terminated. No substantial new question of patentability. Letter mailed October 15, 2021.
RX-148/21 1,341,519 June 18, 2021 Terminated. No substantial new question of patentability. Letter mailed November 4, 2021.
RX-149/21 3,077,905 September 16, 2021 Terminated. No substantial new question of patentability. Letter mailed December 22, 2021.
RX-150/21 2,871,354 October 27, 2021 September  22, 2023
RX-151/21 3,070,751 October  28, 2021 Terminated. No substantial new question of patentability. Letter mailed March  4, 2022.
RX-152/22 2,737,094 October 21, 2022 June 28, 2023
RX-153/22 2,874,284 November 24, 2022 January 19, 2024
RX-154/23 2,842,822 May 30, 2023 Pending
RX-155/23 3,079,619 June 9, 2023 April 3, 2024
RX-156/23 2,853,285 September 12, 2023 Terminated. No substantial new question of patentability. Letter mailed February 22, 2024.
RX-157/23 3,180,537 December 29, 2023 Pending