Method of producing die-stamped articles
CA 1049385 A · Owner: S.A. Des Usines A Cuivre Et A Zinc De Liege · Inventors: Balon, Roger
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of producing coins medals or the like from an, alloy which is hardenable by means of structural hardening i.e. hardenable by one or several heat treatments this method comprising, the following operations: (a) hot rolling or cold rolling of an ingot or hot rolling thereof, followed by cold rolling said ingot being composed of an alloy, which is hardenable by means of thermal treatment; (b) cutting of a blank from said ingot; (c) edge-forming the blank;, (d) applying thermal treatment inducing softening to the blank after operation (a) or after operation (b);, (e) forming the aarticle by a die-stamping operation from said blank; (f) applying thermal hardening treatment to the …
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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 February 27, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 27, 1996.
- 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.