Tubular band assembly process
CA 2244453 A1 · Owner: Champagne, Marcel · Inventors: Champagne, Marcel; Duplessis, Luc Gaetan; Cardone, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Self-made cigarettes, i.e. cigarettes that are supplied in unsmokable condition in the form of a tobacco-bearing component attached to a porous filter or a portion of the surface of which is highly permeable and an impervious, tubular band carried on the component and slidable along it to cover the permeable region. The tubular band can be applied in a number of ways including compressing the tobacco-bearing component to slide a preformed tubular band onto it; using a fugitive adhesive to entrain a rectangular sheet to the surface of the tobacco-bearing component to form the band dissipation of the adhesive subsequently rendering the tubular band movable; utilizing an adhesive strip by …
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 July 31, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 31, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 31, 2020.
- 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.