Building component
CA 2107288 C · Owner: Plascon Technologies (Proprietary) Limited · Inventors: Symons, Michael Windsor
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A building component comprises a core formed from one or more sheets or elements of a natural fibre material each sheet or element having been, impregnated with a liquid composition comprising a thermosetting resin an, extending liquid for the thermosetting resin and a catalyst for the thermosetting resin, the thermosetting resin having been polymerised and, an encapsulating layer, from 1 mm to 20 mm thick encapsulating the care, and formed from a composition comprising from 10% to 80% inclusive by weight of the composition of a hydraulic binder from 6% to 60% inclusive, by weight of the hydraulic binder of a water soluble dispersible or miscible, polymer, and water in an amount sufficient …
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 September 29, 1993 and granted April 16, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 29, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 29, 2015.
- 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.