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Expired Canadian patentCanada

Oligonucleoside alkyl or arylphosphonate derivatives capable of crosslinking with or cleaving nucleic acids

CA 1296664 C · Owner: Miller, Paul S. · Inventors: Miller, Paul S.; Ts'O, Paul O.P.

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Abstract of the Disclosure, A composition for inactivating a target nucleic acid which comprises an oligonucleoside alkyl or arylphosphonate analogue which is complementary to the sequence of the target nucleic acid and includes a functional group which reacts with the target nucleic acid to render the target nucleic acid inactive or nonfunctional.

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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

  • Granted March 3, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 3, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 27, 1987
GrantedMarch 3, 1992
Term endedMarch 3, 2009
Patent numberCA 1296664 C
Classification (IPC)C07H21/04 +1 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedOct 27, 1987Patent grantedMarch 3, 1992Term endedMarch 3, 2009

Sources & verification

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