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Expired Canadian patentCanada

Pharmaceutical compositions of recombinant beta-interferon and formulation processes

CA 1294215 C · Owner: Cetus Corporation · Inventors: Shaked, Ze'Ev; Stewart, Tracy; Thomson, Jody

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

Stable pharmaceutical compositions suitable for parenteral administration to animals or humans are prepared comprising a therapeutically effective amount of a recombinant IFN-.beta. protein dissolved in an inert carrier medium comprising as solubilizer/ stabilizer(s) one or more biocompatible non-ionic polymeric detergents or a combination of one or more biocompatible non-ionic polymeric detergents with an additional solubilizing and/or stabilizing agent such as sodium dodecyl sulfate or glycerol. Said compositions are in liquid form or lyophflized.

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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 January 14, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 14, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 16, 1987
GrantedJanuary 14, 1992
Term endedJanuary 14, 2009
Patent numberCA 1294215 C
Classification (IPC)A61K38/21 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedOct 16, 1987Patent grantedJan 14, 1992Term endedJan 14, 2009

Sources & verification

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