Sheet molding compound manufacturing improvements
CA 2329440 A1 · Owner: Greve, Bruce N. · Inventors: Greve, Bruce N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides an apparatus (10) for manufacturing sheet molding compound comprising a fiber processing unit (12) for forming a fiber web. The apparatus also includes a precompaction unit (34) for squeezing air out of the fiber web and a resin mixture paste dispenser (36) for applying paste to the fiber web. The apparatus functions to minimize entrapped air from the resin mixture paste and fiber web.
Read the whole patent
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 April 23, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 23, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 23, 2021.
- 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.