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Expired Canadian patentCanada

Intravenous feeding pump failure alarm system

CA 1074652 A · Owner: Origo Incorporated · Inventors: Lundquist, Ingemar H.

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Abstract, The present invention relates to a failure alarm system for an intravenous feeding pump in which the pumping force is secured by the projection or a plunger into a chamber filled with the liquid to be pumped, which plunger is encased in a tightly fitting sheath of elastic material. In such a pump actuation is secured by the application of a force from an actuator to the end of the plunger extending without the wall of a pumping chamber and the return force is secured by the elasticity of the sheath. The actuator of such a pump provides an actuator which can be selectively set to provide an extended range of operations per unit of time and can be modified to control the amount or …

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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 April 1, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 1, 1997.
  • 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—
GrantedApril 1, 1980
Term endedApril 1, 1997
Patent numberCA 1074652 A
Classification (IPC)A61M1/00 +2 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedApril 1, 1980Term endedApril 1, 1997

Sources & verification

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