Apparatus for stabilizing the shape of cuboidal (cigarette) packs
CA 2033683 C · Owner: Focke & Co. (G.M.B.H. & Co.) · Inventors: Focke, Heinz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In the production of packs with adhesively bonded folding tabs, especially of (soft) cup packs for cigarettes it is, necessary to keep the just finished packs for a while in an environment which preserves or improves their shape before they are discharged. For this purpose, an elongated pack channel (31) is provided, into which the finished packs (20) are pushed at one end (inserting opening 32) and which the packs leave after some time at the opposite end (discharge opening 33). The pack channel (31) has a cross-section which stabilizes or improves the cross-sectional shape of the pack (20). A plurality of pack channels (31) are mounted on a conveyor (channel conveyor 41) side-by-side. …
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 January 7, 1991 and granted May 1, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 7, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 7, 2013.
- 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.