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Expired Canadian patentCanada

Combined washer-decanter used in reconstituting blood

CA 1065764 A · Owner: Damon Corporation · Inventors: Waye, William E.; Fox, Gerald D.; Samson, Wilfred J. (Jr.)

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

Decanting apparatus for removing spent wash liquids from agglomerated red blood cells and like substances contained in an elongated pliable bag-like container has an inclined slide bed over which the container is draped. A cell-containing end portion of the container depends from the raised end of the slide bed, and the slide bed supports an elongated wash-receiving portion of the bag to maintain the bag under the tension required for decanting spent wash liquid from the former portion into the latter portion. An elevator mechanism supports the raised end of the slide bed and enables an operator selectively to elevate the bed as required for the decanting operation. A modular construction …

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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 6, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 6, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedNovember 6, 1979
Term endedNovember 6, 1996
Patent numberCA 1065764 A
Classification (IPC)A61M1/02

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedNov 6, 1979Term endedNov 6, 1996

Sources & verification

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