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Expired Canadian patentCanada

Method and apparatus for aligning labels on shirred food casing

CA 2131978 C · Owner: Teepak, Inc. · Inventors: Kelley, Mark David; Fox, Mark Lee

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

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Abstract From the Canadian patent

In a method for the continuous automated manufacture of stuffed food casings containing imprinted labels wherein tubular, material for the casings from a supply source is axially shirred into sections and the sections are stuffed with food emulsion into divided off portions, the improvement comprising measuring linear motion of the casing as the portions are filled with food emulsion; inputting the measured motion to a programmable logic controller; within the programmable logic controller calculating, an approximate distance between eye-mark bars separating the individual portions, where the calculation is based upon a known distance between eye-mark bars; based upon the calculated …

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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 13, 1994 and granted November 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 13, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 13, 2016.
  • 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 13, 1994
GrantedNovember 12, 2002
Term endedSeptember 13, 2014
Patent numberCA 2131978 C
Classification (IPC)A22C13/00 +1 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedSep 13, 1994Patent grantedNov 12, 2002Term endedSep 13, 2014

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