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Expired Canadian patentCanada

Iv pump cassette

CA 1281957 C · Owner: Lentz, David · Inventors: Bartholomew, Victor L.; Lentz, David

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

A cassette for use with an I.V. infusion pump has a housing with a first inlet, a second inlet an outlet, and a, port to the I.V. infusion pump. A valve body is positioned within the housing to selectively establish fluid communication from the first inlet to the port or from the, second inlet to the port, or from the port to the outlet. Movement of the valve body within the housing into yet another position allows for the free flow of fluid directly between the first inlet or the second inlet and the outlet.

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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 March 26, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 26, 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.
FiledNovember 23, 1988
GrantedMarch 26, 1991
Term endedMarch 26, 2008
Patent numberCA 1281957 C
Classification (IPC)A61M5/14 +1 more

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedNov 23, 1988Patent grantedMarch 26, 1991Term endedMarch 26, 2008

Sources & verification

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