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Expired Canadian patentCanada

Electric steam generator

CA 1236152 A · Owner: Caliqua · Inventors: Daney, Georges J.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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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 May 3, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 3, 2005.
  • 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 22, 1984
GrantedMay 3, 1988
Term endedMay 3, 2005
Patent numberCA 1236152 A
Classification (IPC)A61M11/00 +1 more

Timeline

Timeline From CIPO dates

1985198819911994199720002003Application filedNov 22, 1984Patent grantedMay 3, 1988Term endedMay 3, 2005

Sources & verification

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