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Expired Canadian patentCanada

Region-specific determinants for vitamin k dependent bone protein

CA 1198052 A · Owner: The Regents Of The University Of California · Inventors: Deftos, Leonard J.; Catherwood, Bayard D.

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Abstract From the Canadian patent

Novel oligopeptides used as reagents or in the preparation of reagents in relation to gammacarboxyglutamic acid-containing protein of bone. Particularly labeled oligopeptides and antibodies prepared from immunogen conjugates are disclosed for use in immunoassays. The oligopeptides of the invention have substantially the same amino acid sequence as regions of hBGP. By having oligopeptides that immunogenically mimic regions of BGP antibodies can be obtained that are highly specific for BGP and regions of BGP. Therefore, in conducting immunoassays, cross reactivity is minimized and a high binding titer is provided. Further as the oligopeptides of the invention are much smaller than the natural …

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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 December 17, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 17, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 25, 1983
GrantedDecember 17, 1985
Term endedDecember 17, 2002
Patent numberCA 1198052 A
Classification (IPC)G01N33/57 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedApril 25, 1983Patent grantedDec 17, 1985Term endedDec 17, 2002

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