A coating for emi shielding and method therefor
CA 2011852 C · Owner: B.F. Goodrich Company (The) · Inventors: Sullivan, F. Ryan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An aqueous based electrically conductive paint having substantially enhanced electrical properties employing a nickel pigment and a surfactant having substantial unsaturation characteristics. Paint is held at 50°C or greater for at least one hour requires no aging before use. The paint finds particular application in providing EMI and RFI shielding for electrical components when applied to cabinetry housing such components.
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 March 9, 1990 and granted November 23, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 9, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 9, 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.