Structure forming method, apparatus and the product
CA 2187093 C · Owner: Payne, Leroy · Inventors: Payne, Leroy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of forming a continu-, ous structure includes the steps of flowing a first liquid reactive resin material (75) over a base surface (74), form-, ing a first thin layer (76) thereof and gelling the first layer (76). A second liquid resin material is flowed through an orifice (49) under pressure forming a liquid stream (77) thereof. The liquid stream (77) is gelled to form a continuous filament (78) with structural integrity as it advances toward the first gelled layer (76). The filament (78), is contacted with the first layer (76) and distributed thereover in a prese-, lected pattern (79) forming a porous non-woven filament blanket (81). A, particulate solid material (82) is …
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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 4, 1995 and granted April 22, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 4, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 4, 2017.
- 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.