Method for continuously forming a fiber reinforced plastic lattice structure
CA 2020436 C · Owner: Sekine, Kenichi · Inventors: Hayashi, Koshiro; Sekine, Kenichi; Sugita, Minoru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for continuously forming a fiber reinforced plastic lattice structure, which comprises placing a plurality of linear longitudinal members of uncured resin-impregnated continuous filament fiber with a distance from one another in parallel with the advancing direction of an advancing carrier; advancing the longitudinal members together with the carrier; placing before or after the placement of the longitudinal members, a plurality of linear transverse members of uncured resin-impregnated continuous filament fiber to intersect the longitudinal members 50 that a lattice structure is formed by the longitudinal and transverse members; curing the lattice structure on the advancing …
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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 July 4, 1990 and granted December 1, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 4, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 4, 2012.
- 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.