Process for reduction of nicotine content of tobacco by microbial treatment
CA 1110440 A · Owner: Brown & Williamson Tobacco Corporation · Inventors: Newton, Richard P.; Gravely, Lawrence E.; Geiss, Vernon L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for the reduction of the nicotine content of tobacco by microbial treatment is disclosed. Tobacco is subjected, under controlled conditions to the action of a, microorganism effective to degrade nicotine through a biochemical reaction in which, inter alia, 3-succinoylpyridine is formed. Tobacco treated in accordance with this process when, incorporated into a tobacco smoking product produces a mild, smoke, having a reduced nicotine content. However there is, no loss of desirable flavor, taste and smoking properties.
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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 October 13, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 13, 1998.
- 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.