Polymeric watercraft and manufacture method thereof
CA 2371459 A1 · Owner: Sellepack, David M. · Inventors: Sellepack, David M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A three dimensional structure, such as a watercraft and a method for, forming the three dimensional polymeric structure are described. The method includes providing at least one paint layer and a bonding layer coupled to the at least one paint layer and including a first exterior surface, extruding a structural sheet of at least one polymeric material at an extrusion temperature, wherein the sheet has a thickness of at least 0.25 inches and a second exterior surface joining the first exterior, surface to the second exterior surface to form a thermoformable sheet forcing the thermoformable sheet against a three dimensional mold while the sheet is at a thermoformable temperature to deform the …
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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 11, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 11, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 11, 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.