Process and apparatus for recovering tobacco particles from intact cigarette packages
CA 1208100 A · Owner: Rjr-Macdonald Corp. · Inventors: Jackson, George L.; Downs, Douglas N.; Hallows, Ronald J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for recovering tobacco particles from intact cigarette packages in which the intact packages are subjected to disintegrating action effected between impeller members and one or more pairs of longitudinally extending rows of teeth of which, the teeth in each row project transversely toward the teeth in the adjacent row, each impeller member having its cross-section elongated in the longitudinal direction and moving generally longitudinally relative to said rows. The disintegration may be carried out on a modified tobacco threshing machine and is effective to tear the packages and paper tubes of the cigarettes containing the tobacco particles into a mixture comprising tobacco …
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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 July 22, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 22, 2003.
- 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.