Cellulase resistant cellulose casing and process
CA 2251210 C · Owner: Jon, Shiu-Chung · Inventors: Lacoste-Bourgeacq, Jean-Francois; Jon, Shiu-Chung
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cellulose food casing and process for making a casing of a tubular cellulosic film having an exterior tube surface and an interior tube surface where the exterior surface is coated with (a) at least one protein having an acidic isoelectric point preferably .beta.-lactoglobulin and (b) at least one cationic thermosetting resin having epoxy groups, such as a resin which is the reaction product of (a) an epichlorohydrin and (b) at least one polyamide, polyamine polyamine-polyamide or blends thereof, to provide a casing having improved resistance to degradation e.g. by enzymes such as cellulase.
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 October 19, 1998 and granted August 27, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 19, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 19, 2020.
- 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.