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Expired Canadian patentCanada

Cell lines and their use for the production of proteins

CA 1267620 C · Owner: Wilson, Elaine Lynette · Inventors: Wilson, Elaine Lynette

CIPO record

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Abstract From the Canadian patent

4-14455/WIS/1+2/+, Cell lines and their use for the production of proteins Abstract of the Disclosure, The invention relates to new human cell lines which proliferate in the absence of serum or any exogenous macromolecular growth factor. The invention concerns especially the serum-independent Bowes II cell line and the proteins obtainable therefrom. The invention also provides a process for the production of said cell lines and said proteins. Said proteins are useful for the prophylactic and therapeutic treatment of the human body.

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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 10, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 10, 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.
FiledDecember 28, 1983
GrantedApril 10, 1990
Term endedApril 10, 2007
Patent numberCA 1267620 C
Classification (IPC)C12N5/00 +2 more

Timeline

Timeline From CIPO dates

19841987199019931996199920022005Application filedDec 28, 1983Patent grantedApril 10, 1990Term endedApril 10, 2007

Sources & verification

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