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Expired Canadian patentCanada

Transducer assembly and method

CA 2121475 C · Owner: Ranco North America L.P. · Inventors: Ridenour, Ralph G.

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 transducer assembly includes a cap readily removable from a housing and enclosing a pressure transducer and a main valve body. Seals are located inside the housing which often are elastomeric or otherwise heat damageable. A top cartridge together with all of the seals inside the housing is readily disconnectable from the housing to separate the seals from the transducer assembly first end. This first end may then be heat sealed by soldering, brazing or welding, to a manifold or the like without any heat damage to the various seals. The transducer assembly then may be readily reassembled to form an operative transducer assembly.

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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

  • Filed August 25, 1993 and granted March 13, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 25, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 25, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 25, 1993
GrantedMarch 13, 2001
Term endedAugust 25, 2013
Patent numberCA 2121475 C
Classification (IPC)G01L19/14 +1 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedAug 25, 1993Patent grantedMarch 13, 2001Term endedAug 25, 2013

Sources & verification

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