A method for the production of a multimatrix of rubber and the use thereof for the simultaneous manufacture of a plurality of identical ornaments
CA 2521912 A1 · Owner: Gastaldi, Maurizio · Inventors: Tozzi, Ivo; Menozzi, Alberto; Gastaldi, Maurizio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The method comprises the stages of: preparing a metal matrix (12) which reproduces in positive form the shape of at least one ornament (10) forming a , first hollow vessel, the bottom of which is constituted by the metal matrix (12), pouring a rubber (16) in the fluid state into the first vessel and leaving it to harden to give a matrix (18) of hardened rubber which reproduces in negative form the shape of at least one ornament (10) this operation being , repeated several times putting together the matrices (18) of hardened rubber in a side-by-side arrangement to give a composite structure (20) forming a , second hollow vessel, the bottom of which is constituted by the composite …
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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
- Filed April 9, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 9, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 9, 2025.
- 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
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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.