Coin blank
CA 2092941 C · Owner: Krupp Vdm G.M.B.H. · Inventors: Seuster, Egon; Heubner, Ulrich; Rinke, Horst
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a two-part blank for coins medals, tokens, gambling chips and the like comprising an inner disc of, a first metal or a metal alloy which is pressed into the central, opening of an outer ring of a second metal or a second metal alloy, the outer edge (4) of tha disc (1) being formal with obliquely extending depressions (5).
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 30, 1993 and granted January 25, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 30, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 30, 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.