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Expired Canadian patentCanada

Antiinflammatory analgesic gelled ointment

CA 1103159 A · Owner: Kowa Company Limited · Inventors: Muramatsu, Toyojiro; Nagai, Hidetaka; Inagi, Toshio

CIPO record

Overview

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

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Abstract From the Canadian patent

An antiinflammatory analgestic gelled ointment is disclosed which comprises indomethacin, a medium consisting of a glycol, alcohol and water, a gelling agent selected from cellulose and a carboxyvinyl polymer which has been neutralized with an amine, and water sufficiently enough to make up with the balance. Such gelled ointment has an excellent antiinflammatory activity.

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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 16, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 16, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 14, 1978
GrantedJune 16, 1981
Term endedJune 16, 1998
Patent numberCA 1103159 A
Classification (IPC)A61K9/06 +1 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedJune 14, 1978Patent grantedJune 16, 1981Term endedJune 16, 1998

Sources & verification

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