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Expired Canadian patentCanada

Apparatus for separating meat from poultry bones

CA 2025148 C · Owner: Sterling Manufacturing Company, Inc. · Inventors: Elsten, Stanley 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

Apparatus for removing meat from the drumsticks of poultry, such as turkeys and chickens, utilizes aligned tandem cylinders, the first of which urges the second along a guided path, the second carrying a centering cone pusher thereon for receiving the meat end of the drumstick axially thereinto. Transversely moving gates engage the drumstick about the hock knuckle end and the centering cone upon, moving forward under the force exerted by the first cylinder against the second cylinder, pushes the hock knuckle end through and past the closed gates. This places extreme tension on the tendons between the gates and where they are attached to the hock knuckle, causing the tendons to break while …

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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 September 12, 1990 and granted May 24, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 12, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 12, 2012.
  • 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 12, 1990
GrantedMay 24, 1994
Term endedSeptember 12, 2010
Patent numberCA 2025148 C
Classification (IPC)A22C21/00 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedSep 12, 1990Patent grantedMay 24, 1994Term endedSep 12, 2010

Sources & verification

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