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Expired Canadian patentCanada

Methods for producing selected interstrand cross-links in chromosomal nucleic acids and applications thereof

CA 2353643 C · Owner: Primosa International N.V. · Inventors: Tanke, Hendrikus Johannes; Volkers, Herman; Van Gijlswijk, Robertus Petrus Maria

CIPO record

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Abstract From the Canadian patent

The invention provides methods and means for generating interstrand crosslinks in nucleic acid at certain specific locations in said nucleic acid. Said certain specific locations in said nucleic acid can be selected from other locations through hybridising nucleic acid present in said selected location with complementary nucleic. In one aspect the invention provides a method for providing at least one selected sequence in a nucleic acid with interstrand cross-links comprising hybridising at least one selected single strand sequence with a complementary single strand nucleic acid wherein said selected sequence or said complementary nucleic acid or both comprise a cross-linking agent. …

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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 December 3, 1999 and granted October 15, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 3, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 3, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 3, 1999
GrantedOctober 15, 2013
Term endedDecember 3, 2019
Patent numberCA 2353643 C
Classification (IPC)C07F15/00 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedDec 3, 1999Patent grantedOct 15, 2013Term endedDec 3, 2019

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