Method and apparatus for making gusseted package
CA 2445771 A1 · Owner: Forman, Harold M. · Inventors: Forman, Harold M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method and apparatus for making gusseted packages having openable and reclosable interlocking seals, the seals having male and female portions snap , detents, and formed transversely to the direction of film flow. The packaging film is provided at package length intervals with thermoformable strips secured thereto transversely to the running length of the film and is fed to , a modified standard vertical form fill and seal packaging machine with , gussets forming tooling where the film is formed into a bag with the thermoformable strips inside at the upper end of the bag product deposited , into the bag, the bag sealed the reclosable interlocking seal formed and the , bag severed from …
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 April 10, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 10, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 10, 2024.
- 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.