Expired Canadian patentCanada
Procedure for opto-electronic identification of the combustion line of the wrapper encasing a smokable article, and apparatus for carrying out this procedure
CA 1197705 A · Owner: B.A.T. Cigaretten-Fabriken G.M.B.H. · Inventors: Pangritz, Dirk; Trinkies, Wolfgang
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Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Procedure for opto-electronic identification of the combustion line of the wrapper encasing a smokable article, and apparatus for carrying out this procedure.
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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 December 10, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 10, 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.
FiledNovember 5, 1982
GrantedDecember 10, 1985
Term endedDecember 10, 2002
Patent numberCA 1197705 A
Classification (IPC)G01N21/17 +2 more
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.