Reinforced composite structure
CA 2243336 A1 · Owner: Spectrum Solutions, Ltd. · Inventors: Stenger, Jennifer L.; Steele, Robin S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tank for storing a pressurized gas including walls of a layered material 15 and continuous fibrous bundles of fibers (16) woven through the walls of layered material (15). The continuous fibrous bundles (16 and Fig. 8) have first ends (17) that extend over a first wall of material (15) pass through, the first wall of material (15) extend through the interior of the tank (11) pass, through another wall of the material (15) and have second ends (17) that extend over the other wall of the material (15). Other bundles of fibers (18 20) can be, woven between different walls of the tank (11) in a similar pattern to produce complex three dimensional shapes (Figs. 3-8). In another embodiment …
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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 15, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 15, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 15, 2020.
- 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.