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Expired Canadian patentCanada

Vaccines based on membrane bound proteins and process for making them

CA 1341291 C · Owner: Genentech, Inc. · Inventors: Berman, Phillip Wayne; Lasky, Laurence Allan

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Abstract From the Canadian patent

The present invention relates to a vaccine comprising a polypeptide with antigenic determinants capable of raising neutralizing antibodies against a pathogen. The polypeptide may be functionally associated with a surface membrane of a recombinant, stable. continuous cell line capable of its production. Alternatively the polypeptide is formed first in functional association with a surface membrane of a recombinant. stable continuous cell line capable of its production and then dissolved free from the membrane. The polypeptide may also be a truncated membrane-free derivative of a membrane-bound polypeptide. The derivative is formed by omission of a membrane-binding domain from the polypeptide …

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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 September 11, 2001. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 11, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 27, 1984
GrantedSeptember 11, 2001
Term endedSeptember 11, 2018
Patent numberCA 1341291 C
Classification (IPC)A61K39/00

Timeline

Timeline From CIPO dates

198519891993199720012005200920132017Application filedAug 27, 1984Patent grantedSep 11, 2001Term endedSep 11, 2018

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