Method and apparatus for producing gas occlusion-free and void-free compounds and composites
CA 2310703 A1 · Owner: Dufeu, L. Jorge · Inventors: Vidaurre Heiremans, Victor; Dufeu, L. Jorge; Bendek, G. Wilfredo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention discloses a generic method for producing void and gas occlusion free materials, as well as apparatuses for batch and continuous production of same. This generic method can be utilized in the production of a wide variety of polymeric compounds and composites and specifically encompasses the two ends of the polymeric composite spectrum that is, polymer , concretes on the one hand and fiber-reinforced polymer composites on the other. The composite materials of the present invention are characterized by visual count as being void and gas occlusion free to the level of 1 micron at 1250x magnification. Concomitantly, the invention produces useful polymer concrete …
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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 November 20, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 20, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 20, 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
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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.