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Expired Canadian patentCanada

Parenteral administration set with internal valve and flow restrictor

CA 1065722 A · Owner: Burron Medical Products · Inventors: Burke, George K.; Raines, Kenneth; Lefevre, Robert J.

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Abstract From the Canadian patent

Title of the Invention, PARENTERAL ADMINISTRATION SET WITH INTERNAL VALVE AND FLOW RESTRICTOR Abstract of the Disclosure, A parenteral administration set particularly for intravenous, infusion of fluids includes a drip chamber and a length of flexible intravenous tubing connected therewith. A flow controlling valve is in the length of tubing and is operable between open and closed positions from exteriorly of the tubing to obtain a desired drip rate corresponding directly with the frequency of valve operation. A fixed flow restrictor is in the length of tubing to impart a predetermined back pressure to flow through the set, whereby the rate of drop formation in the drip chamber is …

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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 1065722 A
Classification (IPC)A61M5/14 +1 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedNov 6, 1979Term endedNov 6, 1996

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