Expired Canadian patentCanada
Preservation of low acid food products in the absence of chemical preservatives
CA 1089286 A · Owner: Kraft, Inc. · Inventors: Oles, John G.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Preservation of low acid food products in the absence of chemical preservatives with the combination of acetic acid and phosphoric acid.
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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 November 11, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 11, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 30, 1978
GrantedNovember 11, 1980
Term endedNovember 11, 1997
Patent numberCA 1089286 A
Classification (IPC)A23L27/60
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.