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Expired Canadian patentCanada

Coated transplants and method for making same

CA 1267851 C · Owner: The Regents Of The University Of California · Inventors: Cochrum, Kent C.

CIPO record

Overview

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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, Transplants, such as pancreatic islets are, made suitable for transplantation into a genetically dissimilar individual by coating the transplant with a surface-conforming bonding bridge layer of a multifunctional material that binds chemically to a surface component of the transplant followed by a semipermeable, biologically compatible layer of a polymer that binds chemically to the bonding bridge layer.

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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 April 17, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 17, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 12, 1986
GrantedApril 17, 1990
Term endedApril 17, 2007
Patent numberCA 1267851 C
Classification (IPC)A61L27/00 +2 more

Timeline

Timeline From CIPO dates

1987199019931996199920022005Application filedMarch 12, 1986Patent grantedApril 17, 1990Term endedApril 17, 2007

Sources & verification

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