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Expired Canadian patentCanada

Cassette for intravenous controller

CA 1136506 A · Owner: Imed Corporation · Inventors: Cannon, Raymond E.

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 of the Disclosure . A cassette provides for a controlled introduction of fluid from a source to a patient. It includes a block and a chamber in the block. Separating means such as a diaphragm are movable in the chamber to define first and second compartments each having a variable volume in accordance with such movement. A transducer is movable with the separating means. The transducer may include a coil disposed on the block and a magnetic rod magnetically coupled to the coil and movable with the separating means to vary the inductance of the coil. Input and output lines are provided in the block. One of the lines in a first pair communicates with the input line and the first …

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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 30, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 30, 1999.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 25, 1979
GrantedNovember 30, 1982
Term endedNovember 30, 1999
Patent numberCA 1136506 A
Classification (IPC)A61M5/00 +2 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedMay 25, 1979Patent grantedNov 30, 1982Term endedNov 30, 1999

Sources & verification

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