Tubular food casings with improved end closures and methods of manufacture
CA 1294484 C · Owner: Miller, Fredric N. · Inventors: Lithgow, John P.; Gilbert, Donald K.; Hine, Rodney J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Permanently bonded, highly reliable end-closures are formed on shirred tubular strands with less film waste and without applying adhesives by occluding deshirred film from one end of the strand and sealing the occluded film by the application of sufficient pressure and energy to cause gelation and adhesion of the film surfaces.
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
- Granted January 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 21, 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.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.