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Canadian application, no grantCanada

Refrigerant circuit feeding apparatus for cool thermal storage system

CA 2058709 A1 · Owner: Longman, Michael G. · Inventors: Longman, Michael G.; Uselton, Robert B.; Dean, William J.

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 improved refrigerant circuit feeding apparatus of the present invention includes a refrigerant reservoir chamber disposed at the upper vertical end of the refrigerant reservoir supply chamber to supply refrigerant which flows downwardly within the, refrigerant reservoir chamber. A plurality of refrigerant evaporator supply conduits are disposed substantially equiradially with respect to the refrigerant reservoir chamber and in, near proximity to or at the bottom portion of the refrigerant reservoir chamber to supply refrigerant in substantially equal amounts to each of the refrigerant circuits within the associated evaporator.

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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 3, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 3, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 3, 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.
FiledJanuary 3, 1992
GrantedNo grant recorded
Term endedJanuary 3, 2012
Patent numberCA 2058709 A1
Classification (IPC)F25B41/00

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedJan 3, 1992Term endedJan 3, 2012

Sources & verification

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