Cigarette rod holder
CA 2003288 C · Owner: Broen, John · Inventors: Broen, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A novel cigarette rod holder and novel method of assembly of cigarette for smoking are described. The rod holder comprises a conventional cigarette filter with a short extension of its wrapping to receive an individual cigarette rod therein in sliding fit. A multiple-length cigarette rod is separated individual lengths and the individual cigarette rod is inserted into the wrapping extension and glued in place.
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 November 17, 1989 and granted March 18, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 17, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 17, 2011.
- 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.