Process for reduction of nitrate and nicotine content of tobacco by microbial treatment
CA 1195271 A · Owner: Brown & Williamson Tobacco Corporation · Inventors: Geiss, Vernon L.; Gregory, Charles F.; Gravely, Lawrence E.
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 nitrate and nicotine contents of tobacco by microbial treatment is disclosed wherein tobacco materials are subjected under controlled, conditions, to the action of a microorganism effective to degrade nitrates and alkaloids (nicotine) through a biochemical reaction. The microorganism is combined or grown in the presence of a nitrate containing compound in relatively small quantities. Tobacco treated in accordance with this process has a reduced nitrate and nicotine content and when, incorporated into a tobacco smoking product thereby produces a mild smoke, having reduced nitrogen oxides hydrogen cyanide, and nicotine content. However there is no loss of …
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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 15, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 15, 2002.
- 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.