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Expired Canadian patentCanada

Methods and probes for detecting nucleoside transporter and method for producing the probes

CA 2030875 C · Owner: Gati, Wendy P. · Inventors: Craik, James D.; Buolamwini, John K.; Gati, Wendy P.

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Abstract From the Canadian patent

Novel probes are provided for determining the es nucleoside transporter sites of, animal cells, including human cells. Methods of preparing these probes and methods of using, them to determine the es nucleoside transporter are also provided. The probe is preferably, comprised of a compound having the general formula: wherein n is 1 - 12; R7 is H, halogen, NH2 OH, OCH3, O(CH2)n CH3 (where n is , 1 - 12) SH, SR (where R is CH3 or (CH2)n CH3 and n is 1 to 12); A is NH S, 0, Se; X is N , or C; Y is N or, C; Z is N or C; R2 is C 1 to C20 substituted or unsubstituted alkyl or heteroalkyl; C1 to C20, substituted or unsubstituted aliphatic carbocycle or heterocycle; C1 to C20 substituted or, …

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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 November 26, 1990 and granted July 2, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 26, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 26, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 26, 1990
GrantedJuly 2, 2002
Term endedNovember 26, 2010
Patent numberCA 2030875 C
Classification (IPC)C07H19/04 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedNov 26, 1990Patent grantedJuly 2, 2002Term endedNov 26, 2010

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