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Expired Canadian patentCanada

Composition for inhibiting tumor growth

CA 1294874 C · Owner: Celtrix Laboratories, Inc. · Inventors: Todaro, George J.; Twardzik, Daniel R.; Mcpherson, John M.

CIPO record

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Abstract From the Canadian patent

Abstract, A polypeptide called cartilage-inducing factor (CIF-B) or transforming growth factor beta 2 (TGF-B2) that is found in bone and has heretofore been identified as having in vitro cartilage-inducing activity TGF-B, activity, and anti-inflammatory activity has now been found to possess potent oncostatic activity. CIF-B showed oncostatic activity on human and animal tumors including carcinomas, adenocarcinomas, lymphomas and, melanomas.

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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 January 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 28, 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.
FiledNovember 3, 1987
GrantedJanuary 28, 1992
Term endedJanuary 28, 2009
Patent numberCA 1294874 C
Classification (IPC)A61K38/18

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedNov 3, 1987Patent grantedJan 28, 1992Term endedJan 28, 2009

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