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Expired Canadian patentCanada

Collapsible presizing rings

CA 1302154 C · Owner: Stanley, Thomas R. · Inventors: Stanley, Thomas R.

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

TPP:434, COLLAPSIBLE PRESIZING RINGS, ABSTRACT OF THE DISCLOSURE A collapsible ring for sizing food casing during stuffing can be reduced in size for insertion onto the deshirred end of a shirred strand for efficient packaging and storage. The sizing ring is automatically expanded to the desired sizing diameter when the casing-sizing ring unit is inserted onto the stuffing horn of a filling machine.

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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 June 2, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 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.
FiledJuly 20, 1988
GrantedJune 2, 1992
Term endedJune 2, 2009
Patent numberCA 1302154 C
Classification (IPC)A22C11/02

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedJuly 20, 1988Patent grantedJune 2, 1992Term endedJune 2, 2009

Sources & verification

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