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Expired Canadian patentCanada

Pharmaceutical preparations containing non-steroidal anti-inflammatory agents

CA 1324083 C · Owner: Nisshin Chemicals Co. Ltd. · Inventors: Miyoshi, Tetsu; Ueno, Masao; Iijima, Takeo

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

Pharmaceutical preparations for oral administration are disclosed which comprise (a) an acidic non-steroidal antiinflammatory agent having the mean particle size of about 100 µm or less and (b) a protein hydrolyzate or a polypeptide having the mean molecular weight of 4000-12000. The pharmaceutical preparations are in the form of tablets granules, capsules and dry syrups. They achieve high bioavailability of the anti-inflammatory agent e.g. ibuprofen.

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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 November 9, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 9, 2010.
  • 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 8, 1988
GrantedNovember 9, 1993
Term endedNovember 9, 2010
Patent numberCA 1324083 C
Classification (IPC)A61K9/00 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedMarch 8, 1988Patent grantedNov 9, 1993Term endedNov 9, 2010

Sources & verification

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