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Expired Canadian patentCanada

Carbonated liquid refrigeration system

CA 2002505 C · Owner: Coca-Cola Company (The) · Inventors: Rudick, Arthur 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 separate refrigeration system in a conventional refrigerator for dispensing a chilled carbonated liquid such as water or a beverage from the front door of the refrigerator and is comprised of a refrigerator having a freezer compartment wherein there is located a condenser. The condenser is interconnected with a combined evaporator-carbonator unit located in the front door. The freezer compartment accordingly acts as a heat sink for the condenser. The evaporator unit being integral with the carbonator, operates to chill the carbonator. When desirable, the condenser and evaporator can be replaced by a liquid heat transfer system having a heat absorbing coil assembly located in the …

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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 November 8, 1989 and granted June 22, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 8, 2009.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 8, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 8, 1989
GrantedJune 22, 1993
Term endedNovember 8, 2009
Patent numberCA 2002505 C
Classification (IPC)F25D31/00 +2 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedNov 8, 1989Patent grantedJune 22, 1993Term endedNov 8, 2009

Sources & verification

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