Tool for forming by punching an orifice with a conical mouth
CA 2237792 C · Owner: Sinteff, Roland · Inventors: Sinteff, Roland
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a tool for forming by punching an orifice (2) with a conical mouth (3) in a strip (4) of metallic material notably for the design of a face piece (5) of a lock fitting or the like. This tool is distinguished in that it comprises: - a punch (9) including a cylindrical part (11) constituting the extension of a conical part (14); - and a female mould (10) having a bore hole (15) with a section matching that of the cylindrical part (11) of the punch (9) the said bore hole (15) having in its wall at least one groove (18 18A), opening on the upper face (19) of the said female mould (10) in way of the strip material (4) to be formed the material exiting via the said groove …
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 May 14, 1998 and granted April 30, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 14, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 14, 2020.
- 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.