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Expired Canadian patentCanada

Accumulator for vehicle air conditioning system

CA 2085491 C · Owner: Koberstein, Manfred · Inventors: Balcom, James H.; Kolpacke, Stephen M.; Koberstein, Manfred

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

An accumulator is provided for use with a vehicle air conditioning system. The accumulator comprises a housing, an inlet tube, an outlet tube and an outlet tube shield. The housing includes first and second end portions and a cylindrical body portion which are joined together to define an interior chamber. An inlet opening is provided through which refrigerant in an inlet tube enters the interior chamber. The inlet tube directs the incoming flow of refrigerant against the first end portion of the housing. The outlet tube shield is attached to the inlet tube, and prevents the direct passage of refrigerant between the inlet tube and free end of the outlet tube.

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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 December 16, 1992 and granted February 10, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 16, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 16, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 16, 1992
GrantedFebruary 10, 1998
Term endedDecember 16, 2012
Patent numberCA 2085491 C
Classification (IPC)B60H1/32 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedDec 16, 1992Patent grantedFeb 10, 1998Term endedDec 16, 2012

Sources & verification

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