Tobacco mixture and a cigarette comprising it
CA 2529031 C · Owner: Reemtsma Cigarettenfabriken Gmbh · Inventors: Seidel, Henning; Wolfgramm, Regine
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a tobacco mixture of the American Blend type having a content of up to 70% by weight of Virginia tobaccos, up to 40% by weight of Burley tobaccos, up to 20% by weight of oriental tobaccos and up to 5% by weight of other tobacco varieties, up to 60% by weight of which tobaccos can be present as expanded tobacco, with, according to the invention, all, or the majority, of the Burley tobacco being present as cut reconstituted tobacco sheet which has been obtained using the TSNA adsorption method. Preference is given to at least 60% by weight of the Burley tobacco in the reconstituted tobacco sheet consisting of lamina; furthermore, the reconstituted tobacco …
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 June 1, 2004 and granted February 21, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 1, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 1, 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.