System and method of making a layered, reinforced composite
CA 2446414 A1 · Owner: Donahue, Wayne · Inventors: Beck, Charles; Donahue, Wayne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system and method of making a layered reinforced composite having an as-, cured "Class A" surface. A mold (20) with a surface (200) having a predetermined degree of finish is heated to a temperature consistent with "inmolding coating" techniques applied to polyurethane-like matrix materials. The mold surface is coated with a first formulation to create an unreinforced topcoat (22) of the eventually cured composite. A second formulation is applied atop the topcoat to create an unreinforced barrier layer (23). A third formulation, comprising polymeric matrix material and reinforcements is , applied atop the barrier layer to create a reinforced layer (24). The combined topcoat, barrier …
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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 May 6, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 6, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 6, 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.