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Expired Canadian patentCanada

Reduction of neurotoxic effects of cytotoxic agents

CA 1330422 C · Owner: Biomedicines, Inc. · Inventors: Brown, Dennis M.; Luck, Edward E.

CIPO record

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

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Abstract From the Canadian patent

Intracranial abnormal solid cellular masses particularly tumors or adjacent tissues that may contain tumor cells, are treated by administering to the abnormal area a sufficient amount of a cytotoxic drug comprising a vinca alkaloid dispersed in a stable flowable proteinaceous matrix. The matrix substantially inhibits the migration of the drug from the site of administration, so as to maintain the primary effect of the drug in the region of administration. Migration can be further inhibited by the use of physiologically acceptable materials which modify cellular properties or physiological responses to further regionalize the placement of drug at the injection site.

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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 June 28, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 28, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 10, 1989
GrantedJune 28, 1994
Term endedJune 28, 2011
Patent numberCA 1330422 C
Classification (IPC)A61K47/42 +2 more

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedFeb 10, 1989Patent grantedJune 28, 1994Term endedJune 28, 2011

Sources & verification

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