Isothiocyanate preservatives and methods of their use
CA 2541001 C · Owner: Zehentbauer, Gerhard Norbert · Inventors: Kester, Jeffrey John; Li, Jianjun Justin; Zehentbauer, Gerhard Norbert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composition for preserving solid food products comprising a moisturesensitive isothiocyanate compound and a hygroscopic carrier wherein the , composition is substantially free of sorbic acid benzoic acid, and salts , thereof. Also disclosed is a solid food product containing the aforementioned preservative composition and a method for preserving solid food products including the steps of adding a moisture-sensitive isothiocyanate to the solid food product and storing the resulting product at a reduced temperature.
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 September 29, 2004 and granted May 8, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 29, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 29, 2026.
- 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.