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Expired Canadian patentCanada

Accumulator for an air-conditioning system

CA 2297598 C · Owner: Stobbart, Michelle Marie · Inventors: Nuss, Matthew Bryan; Ryu, Ki-Sun Jason; Cram, Kenneth Peter Luke

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

The present invention is for an accumulator for an air-conditioning system wherein the accumulator has fewer parts is more effective, and is , easier and cheaper to manufacture. It reduces flooding due to greater effective internal volume, better evaporator, an integral baffle and controlled thermal properties. , Further the, inlet fluid separation can be controlled and it has greater control of the , amount of compressor oil in circulation and adjustable coupling between the interior and the, outlet passage. It can also accommodate desiccating material in many orientations, and can be made of various materials. The accumulator embodies an outer housing, of two or more pieces and an …

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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 January 28, 2000 and granted December 23, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 28, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 28, 2022.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 28, 2000
GrantedDecember 23, 2003
Term endedJanuary 28, 2020
Patent numberCA 2297598 C
Classification (IPC)F25B43/00

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedJan 28, 2000Patent grantedDec 23, 2003Term endedJan 28, 2020

Sources & verification

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