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Expired Canadian patentCanada

Topical treatment of skin inflammatory disorders

CA 1233416 A · Owner: Richardson-Vicks Limited · Inventors: Nacht, Sergio; Gans, Eugene; Yeung, David

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

Abstract of the Invention, Method and pharmaceutical composition for topically treating skin inflammatory disorders by administering to the inflamed area a therapeutically effective amount of a substantially non-polar hydrocarbon fraction from beeswax comprising a mixture of (i) a major proportion of saturated straight chain C21-C33 hydrocarbons and (ii) a minor proportion of mono-unsaturated long chain hydrocarbons.

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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 March 1, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 1, 2005.
  • 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 7, 1984
GrantedMarch 1, 1988
Term endedMarch 1, 2005
Patent numberCA 1233416 A
Classification (IPC)A61K31/01

Timeline

Timeline From CIPO dates

1985198819911994199720002003Application filedAug 7, 1984Patent grantedMarch 1, 1988Term endedMarch 1, 2005

Sources & verification

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