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Expired Canadian patentCanada

Liquid aerating apparatus

CA 2049363 C · Owner: Soda Club Holdings N.V. · Inventors: Wiseburgh, Peter; Hulley, Peter

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 apparatus for aerating liquids contained in bottles comprises safetymeans for detecting any irregularity in the shape and/or dimensions of the bottle and preventing undesired pressurization of a bottle having such irregularities.

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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 August 16, 1991 and granted May 25, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 16, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 16, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 16, 1991
GrantedMay 25, 1999
Term endedAugust 16, 2011
Patent numberCA 2049363 C
Classification (IPC)B01F3/04 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedAug 16, 1991Patent grantedMay 25, 1999Term endedAug 16, 2011

Sources & verification

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