Resistive material
CA 2064770 A1 · Owner: Nixon, John · Inventors: Weston, Colin; Tattersal, Nicholas; Nixon, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Existing resistive material for providing thermal and blast protection has hitherto had a number of drawbacks such as cost, the limitation of the insulation material to withstand structural loading, and the time spent on installation. The present invention provides a resistive material in a composite form comprising a central core (2) reinforced by pultrusions (4) and facings (6) disposed either side of the core (2), said facings (6) comprising a polyester and/or phenolic resin matrix with E glass woven rovings (8) and silica fabric (10). Panels (12) are formed from the resistive material having the pultrusions (4) in a regular structure to enhance the blast protection properties of the …
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 3, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 3, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 3, 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.