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Expired Canadian patentCanada

Cooker vessel

CA 1260281 A · Owner: Heinrich Kuhn Metallwarenfabrik Ag · Inventors: Kuhn, Jacques

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

The cooking vessel consists of an inner wall (1) an outer wall (2) and a plate (3) of good thermal conductivity arranged in the bottom between the inner and outer walls. The outer wall (2) is formed from composite material and has an outer layer of rust-proof material a middle layer of ferromagnetic material and an inner layer of rust-proof material. At the upper rim (4) the, inner wall (1) is connected to the outer layer in a gastight manner. As a result of this design the cooking vessel, is suitable both for induction plates and for conventional electrical cooking plates, ceramic hobs or gas cookers.

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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 September 26, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 26, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 21, 1986
GrantedSeptember 26, 1989
Term endedSeptember 26, 2006
Patent numberCA 1260281 A
Classification (IPC)A47J36/02 +1 more

Timeline

Timeline From CIPO dates

1987198919911993199519971999200120032005Application filedOct 21, 1986Patent grantedSep 26, 1989Term endedSep 26, 2006

Sources & verification

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