Process of forming fiber reinforced molded plastic articles and preforms therefor using a photosetting binder
CA 2073682 C · Owner: Boeckeler, Rudolph Henry · Inventors: Seroogy, Kenneth Austin; Boeckeler, Rudolph Henry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method of making fiber reinforced molded articles and preforms for use in the manufacture of such molded articles which includes the steps of applying a layer of reinforcing fibers, preferably glass fibers on a preform mold, surface which has a configuration corresponding to at least a portion of the final molded article, coating the fibers with an ultraviolet light curable composition which contains a photohardenable material polymerizable under UV light and a polymerization photoinitiator, exposing the coated fibers to UV light to cure the composition, and removing the resulting preform from the preform mold surface. The preform is subsequently used by …
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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 December 19, 1990 and granted February 19, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 19, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 19, 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.