Patent Yard Sign in
Expired Canadian patentCanada

Pre-cooked food product package and corona treatment method

CA 2093253 C · Owner: Viskase Corporation · Inventors: Dudenhoeffer, Vincent J.; Wilhoit, Darrel L.

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

A meat product package comprising an enclosing film having an EVA-containing inside surface and an in situ aqueous medium-cooked meat product in adhering relation to the film inside surface as the meat contacting and adhering surface. Starch particles are preferably dispersed across the meat contacting surface which has been both irradiated and subjected to corona treatment. A method for corona treating a thermoplastic tube inside surface in which small particles within the flat tube separate opposite surfaces providing voids, and the electric discharge crosses the flat tube through the voids.

Read the whole patent

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 April 2, 1993 and granted July 14, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 2, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 2, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 2, 1993
GrantedJuly 14, 1998
Term endedApril 2, 2013
Patent numberCA 2093253 C
Classification (IPC)B05D3/14 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedApril 2, 1993Patent grantedJuly 14, 1998Term endedApril 2, 2013

Sources & verification

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