Patent Yard Sign in
Expired Canadian patentCanada

Fluid recovery and transfer system

CA 1310872 C · Owner: Trivett, Gordon S. · Inventors: Trivett, Gordon S.; Leahey, John L.

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

A fluid recovery and transfer system utilizes hydraulic pressure on a plurality of collapsible containers to effect the alternate intake and output of a fluid from the collapsible containers. The hydraulic pressure is generated through the pumping of a pump fluid to and from a plurality of rigid containers within which the collapsible containers are disposed. The pumping of the pump fluid alternately creates positive and negative pressures within the collapsible containers to draw in the body fluid and to subsequently eject the body fluid. The fluids recovered in such a manner may either be stored processed, or, retransfused back to the body.

Read the whole patent

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 December 1, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 1, 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.
FiledJuly 26, 1989
GrantedDecember 1, 1992
Term endedDecember 1, 2009
Patent numberCA 1310872 C
Classification (IPC)A61M1/36 +2 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedJuly 26, 1989Patent grantedDec 1, 1992Term endedDec 1, 2009

Sources & verification

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