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Expired Canadian patentCanada

Food processor interlock

CA 1081094 A · Owner: General Electric Company · Inventors: Hicks, William R.; Woodard, Richard S.

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

In a food processor with a power base having a bowl supporting portion and driven shaft extending vertically therefrom, an adjacent upstanding motorcontaining housing of bowl height with a bowl on the portion containing a cutter on the shaft and an internal switch controlled motor energizing circuit there is, provided an improved interlock system comprising a bowl lid with structure permanently securing the lid to the bowl opposite the motor housing when the lid is rotated axially of the shaft toward the housing. A housing opening at lid height is provided opposite the securing structure and a probe-carrying arm on the lid is movable into the opening on lid rotation. Releasable arm …

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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 July 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 8, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedJuly 8, 1980
Term endedJuly 8, 1997
Patent numberCA 1081094 A
Classification (IPC)B02C18/12

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedJuly 8, 1980Term endedJuly 8, 1997

Sources & verification

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