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Expired Canadian patentCanada

Topical antimicrobial pharmaceutical composition comprising a silver compound and an azole

CA 1280366 C · Owner: Smith And Nephew Associated Companies P.L.C. · Inventors: Edwards, Linda Mary

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

Pharmaceutical Composition Pharmaceutical compositions which are suitable for topical application in the treatment of bacterial and/or fungal infections are described. The compositions comprise a synergistic mixture of a silver compound and an azole derivative together with a pharmaceutically acceptable carrier therefor. The compositions may be applied topically in the treatment of burns ulcers and other skin lesions general skin infections and also in the treatment of infections of the mucous membranes. Preferred compositions contain silver sulphadiazine and clotrimazole or metronidazole. The compositions may be applied as ointments, gels, pessaries tablets and, the like.

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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 February 19, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 19, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 23, 1987
GrantedFebruary 19, 1991
Term endedFebruary 19, 2008
Patent numberCA 1280366 C
Classification (IPC)A61K31/28 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedMarch 23, 1987Patent grantedFeb 19, 1991Term endedFeb 19, 2008

Sources & verification

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