Semi-finished produit for making electric contacts, made of a composite material based on silver and tinoxide and power-metallurgical process ofprooducing the semi-finished produit
CA 1339713 C · Owner: Michal, Roland · Inventors: Saeger, Karl E.; Michal, Roland; Mayer, Ursula
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A semi-finished product for making electric contacts is described, which consists of a composite material that contains silver and tin oxide, as well as a powder-metallurgical process of producing that product. In the structure of the semi-finished product, regions which contain no metal oxide or very little metal oxide are distributed in alternation with regions which contain all or a predominating part of the metal oxide component in a fine distribution.
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
- Granted March 17, 1998. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 17, 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.