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Expired Canadian patentCanada

Antifungal ointment

CA 2085462 C · Owner: Watson-Smith, Dianna · Inventors: Watson-Smith, Dianna

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

An ointment consisting of the following described ingredients expressed as a percentage of volume. The ingredients being: between 28% and 61% corn starch; between 5% and 30% an antifungal agent compatible with human skin; and between 30% and 60% petroleum jelly.

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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 December 15, 1992 and granted August 11, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 15, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 15, 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.
FiledDecember 15, 1992
GrantedAugust 11, 1998
Term endedDecember 15, 2012
Patent numberCA 2085462 C
Classification (IPC)A61K9/06 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedDec 15, 1992Patent grantedAug 11, 1998Term endedDec 15, 2012

Sources & verification

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