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Expired Canadian patentCanada

Specific tolerance in transplantation

CA 2121370 C · Owner: The United States Of America Represented By The Secretary, Department Of Health And Human Services · Inventors: Sachs, David H.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

Use of nucleic acid encoding a mammal MHC antigen inserted into a bone marrow hematopoietic stem cell in the preparation of a medicament for conferring tolerance to a transplanted tissue in a recipient mammal.

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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 19, 1992 and granted March 18, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 19, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 19, 2014.
  • 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 19, 1992
GrantedMarch 18, 2003
Term endedNovember 19, 2012
Patent numberCA 2121370 C
Classification (IPC)A61K31/70 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedNov 19, 1992Patent grantedMarch 18, 2003Term endedNov 19, 2012

Sources & verification

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