A device for filling prefabricated cigarette tubes, especially filter-tipped cigarette tubes
CA 2010979 C · Owner: Schutze, Gunter · Inventors: Gatschmann, Klaus G.; Schutze, Gunter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for filling prefabricated cigarette tubes especially, filter-tipped cigarette tubes that includes a tobacco pressing chamber with a filling opening, in which tobacco introduced through the filling opening is pressed to form a tobacco rod by means of a pressing beam movable transversely to the longitudinal direction of the tobacco pressing chamber. There is a socket for fitting the cigarette tube thereon and the cigarette tube is retained on the socket by a clamp. There is an ejector for ejecting the tobacco rod from the pressing chamber into the cigarette tube. In order to prevent tobacco fibres from projecting out of the filling opening of the tobacco pressing chamber, a separate …
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 February 27, 1990 and granted November 16, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 27, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 27, 2012.
- 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.