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Expired Canadian patentCanada

Plasma exchange composition

CA 1285480 C · Owner: Biotest Pharma Gmbh · Inventors: Kotitschke, Ronald

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

To maintain an almost unchanged plasma-protein profile in a patient subsequent to plasma exchange the plasma-exchange, medium contains the most essential human serum proteins except for the coagulation factors, at a concentration of 75 g/l.

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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 July 2, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 2, 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.
FiledApril 8, 1987
GrantedJuly 2, 1991
Term endedJuly 2, 2008
Patent numberCA 1285480 C
Classification (IPC)A61K35/16 +1 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedApril 8, 1987Patent grantedJuly 2, 1991Term endedJuly 2, 2008

Sources & verification

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