Method of making a plastic container with integral channel
CA 2267640 A1 · Owner: Camoplast Inc. (Power Sports) · Inventors: Simard, Sylvain; Filion, Francois
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of making fluid receiving plastic containers having walls with fluid circulatable channels integrally formed therein comprises the successive steps of injecting a molten thermoplastic material in a mold cavity having a channel configuration to define in the container being mold, walls, with thicker portions defining a rib configuration injecting a pressurized , gas, throughout the rib configuration to displace molten material therein and to form a hollow channel therein, cooling the container being mold while maintaining gas pressure, venting the gas removing the molded container, from the mold and cutting through the hollow channel at two spaced locations to form inlet and outlet …
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 March 31, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 31, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 31, 2021.
- 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.