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Expired Canadian patentCanada

Rotary hand knife and parts therefor

CA 1236283 A · Owner: Bettcher Industries, Inc. · Inventors: Decker, Richard B.; Bettcher, Louis A.

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

A rotary hand knife 20 of the type used for trimming meat, fat, and the like, and an improved pinion cap 58 and depth-of-cut gauge 47 for use with the knife. The cap provides a stepped mounting surface 149 for the gauge that forms a passage R for product scrap or slices to pass behind the gauge. The cap also has a lip 154 that blocks entry of product particles into the bladedriving pinion. The gauge has an arcuate portion 47a offset toward the blade from a base portion 47b that abuts the cap and slides axially on the cap surface to adjust the depth of cut.

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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 10, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 10, 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.
FiledSeptember 24, 1984
GrantedMay 10, 1988
Term endedMay 10, 2005
Patent numberCA 1236283 A
Classification (IPC)B26B1/00 +1 more

Timeline

Timeline From CIPO dates

1985198819911994199720002003Application filedSep 24, 1984Patent grantedMay 10, 1988Term endedMay 10, 2005

Sources & verification

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