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Expired Canadian patentCanada

Mixing machine bowl support lock

CA 2191087 C · Owner: Premark Feg L.L.C. · Inventors: Xie, Mark M.; Brinkman, John E.

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 invention is a lock (100) for the bowl support (60) of a food mixing machine (10). After the bowl (40) is raised into the mixing position, the lock (100) ensures that the bowl (40) maintains its position and is not subject to creep. The mixing machine (10) comprises a mixing head (30), a mixing bowl support (60) for supporting a mixing bowl (40) under the mixing head (30), a gear train (70) for moving the bowl support (60) and mixing bowl (40) into position beneath the mixing head (30) and a lock, (100) which engages the gear train (70) to prevent the bowl support (60) from moving out of position beneath the mixing head (30) during mixing. The lock (100) is preferably a pawl (114) which …

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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 March 25, 1996 and granted July 18, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 25, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 25, 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.
FiledMarch 25, 1996
GrantedJuly 18, 2000
Term endedMarch 25, 2016
Patent numberCA 2191087 C
Classification (IPC)B01F15/00 +1 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedMarch 25, 1996Patent grantedJuly 18, 2000Term endedMarch 25, 2016

Sources & verification

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