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Expired Canadian patentCanada

Water aerator

CA 2175762 C · Owner: Jager, Sebastian · Inventors: Jager, Andreas; Jager, Arnold; Jager, Sebastian

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 water aerator is provided that has a rigid support plate that in the operating position is disposed essentially horizontally. The support plate has a practically planar upper surface and at least one aperture for air. An elastic plate of elastomeric material is disposed on the upper surface of the support plate. The elastic plate is provided with a plurality of fine slits that can be widened by air that is introduced between the support plate and the elastic plate. The elastic plate has a rim that sealingly surrounds the downwardly directed rim of the support plate to be secured thereto in a hook-type manner.

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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 May 3, 1996 and granted August 6, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 3, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 3, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 3, 1996
GrantedAugust 6, 2002
Term endedMay 3, 2016
Patent numberCA 2175762 C
Classification (IPC)C02F1/74 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedMay 3, 1996Patent grantedAug 6, 2002Term endedMay 3, 2016

Sources & verification

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