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Expired Canadian patentCanada

Stabilized crosslinking composition

CA 2578731 C · Owner: Jacobs, William Iii · Inventors: Jacobs, William Iii; Lin, Lon-Tang Wilson

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Abstract From the Canadian patent

This invention relates to a crosslinking composition comprising and organic acid and a compound having the structure of Formula I: A'-N RA-RDwhere A' is a moiety derived from the group consisting of triazines linear or cyclic ureas, cyanuric acid, substituted cyanuric acids linear or cyclic amides, glycolurils, hydantoins linear or cyclic carbamates and mixtures thereof or , a moiety comprising the structure (II):w here RA is RD hydrogen, an alkyl of , 1 to 20 carbon atoms or taken together with A' forms a cyclic compound; RDis - CHRcORB, wherein RB is hydrogen, alkyl aryl, aralkyl or an alkaryl having , from 1 to about 24 carbon atoms and Rc is an alkyl halogenated alkyl, aryl, aralkyl, …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed August 29, 2005 and granted June 11, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 29, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 29, 2005
GrantedJune 11, 2013
Term endedAugust 29, 2025
Patent numberCA 2578731 C
Classification (IPC)C08G12/40 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedAug 29, 2005Patent grantedJune 11, 2013Term endedAug 29, 2025

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.