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Expired Canadian patentCanada

Paper interleaver for food patty molding machine

CA 1297338 C · Owner: Alfa Laval Ab · Inventors: Janssen, Wilbur A.; Lindee, Scott A.

CIPO record

Overview

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

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Abstract From the Canadian patent

Abstract of the Disclosure, A paper interleaver for a food patty molding machine of the kind using a mold plate cyclically reciprocating along a linear path between a fill position and a knock-out position comprises a shuttle connected to the mold plate for synchronous movement along a linear path between a transfer position and a pickup position. When the mold plate is at its knock-out position and the shuttle at its pickup position, the shuttle pulls a single paper sheet down from the bottom of a storage stack by vacuum; when the mold plate and shuttle are at their respective fill and transfer positions, the shuttle "puffs" the paper sheet up a very short distance to be held by downwardly …

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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 March 17, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 17, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 9, 1988
GrantedMarch 17, 1992
Term endedMarch 17, 2009
Patent numberCA 1297338 C
Classification (IPC)B65B25/08 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedJune 9, 1988Patent grantedMarch 17, 1992Term endedMarch 17, 2009

Sources & verification

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