Smoking articles
CA 1213809 A · Owner: British-American Tobacco Company Limited · Inventors: Mccreadie, John F.K.; Luke, John A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
11-, "Improvements Relating to Smoking Articles" A B S T R A C T, A method of applying metal foil embellishment to cigarette paper or tipping paper comprises pressing foil against tipping using a heated former of a configuration corresponding to that of the desired embellishment. The method which is preferably carried out on a filter tip assembly machine, may result in a depression in the tipping, in which case it is advantageous for the tipping to comprise a thermoplastic material.
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
- Granted November 12, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 12, 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.