Electrical contact
CA 1308151 C · Owner: Phildius, Albert · Inventors: Murr, Alfred; Kallhardt, Heinrich; Phildius, Albert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
OF THE INVENTION, "ELECTRICAL CONTACT" In an electrical contact comprising an intermediate layer (2), applied to a carrier (1), and an outer layer (3) applied to the intermediate layer, in order to provide a contact with which very low to high electrical loads can be switched the intermediate layer (2), consists of a highly abrasion-resistant contact material (e.g. a silver-palladium alloy), and the outer layer (3) consists of a non-corroding, hard and electrically highly conductive contact material (e.g. hard gold) having a relatively small thickness. Fig. 1
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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
- Granted September 29, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 29, 2009.
- 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.