Casting procedure, particularly for engine cylinder head
CA 2500794 A1 · Owner: Meccanica Bassi S.P.A. · Inventors: Bassi, Bruno
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a casting procedure for obtaining parts provided with inside cavities or holes wherein said holes and/or cavities are obtained by laying into a mould or chill intended to receive the molten , metal one or more cores made of sand or other material and wherein a main , core is used, realised into a special core box along one or more secondary , cores intended to be associated to said main core comprising the following , steps: coating at least one secondary core only in the zones and by the , pattern thickness with a layer of material intended to dissolve in contact with the molten metal; inserting the pre-coated secondary cores into the main core box yet …
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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 December 9, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 9, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 9, 2024.
- 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.