Process and apparatus for producing hinge lid packs with collars
CA 2059616 C · Owner: Focke, Heinz · Inventors: Granz, Helmut; 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 hinge lid packs with rounded longitudinal edges, collars (10) which are present in this type of pack are preshaped in the region of longitudinal edges (13) which are also rounded. For this purpose a scoring, (embossed strip 21, 22) which extends in the longitudinal direction is applied to a web of material (14). Thereafter the collars (10) are severed from the web of material (14) and are preshaped in the region of the longitudinal edges (13) which are to be formed. The collars (10) which have been prepared in this way can be placed on a cigarette block and be further processed in the conventional manner.
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 17, 1992 and granted March 4, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 17, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 17, 2014.
- 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.