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Expired Canadian patentCanada

Thermal storage with tubular containers of storage mediums

CA 1305899 C · Owner: Baltimore Aircoil Company, Inc. · Inventors: Cates, Robert E.; Kaplan, Vladimir

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

Tubular containers preferably corrugated, containing, plural thermal storage medium compositions having different fusion temperatures are arrayed in zones or layers within a vessel through which liquid is circulated to exchange heat with the containers.

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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 August 4, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 4, 2009.
  • 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 13, 1989
GrantedAugust 4, 1992
Term endedAugust 4, 2009
Patent numberCA 1305899 C
Classification (IPC)F28D20/00 +1 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedJan 13, 1989Patent grantedAug 4, 1992Term endedAug 4, 2009

Sources & verification

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