Patent Yard Sign in
Expired Canadian patentCanada

Cooking apparatus

CA 1300237 C · Owner: Itou, Shuji · Inventors: Ohji, Kenzo; Itou, Shuji; Mihara, Makoto

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

Abstract:, Cooking apparatus, e.g. a microwave oven is arranged to, accurately detect minor weight variation of a food article on a turntable in synchronization with the position of the turntable or its rotational cycle, whereby to control the cooking by such weight variation with improved accuracy.

Read the whole patent

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 5, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 5, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 14, 1988
GrantedMay 5, 1992
Term endedMay 5, 2009
Patent numberCA 1300237 C
Classification (IPC)F24C7/08 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedJan 14, 1988Patent grantedMay 5, 1992Term endedMay 5, 2009

Sources & verification

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