Method for making aluminum boiler units for coffee making machines, in particular boiler units having a faceted upwardly tapering side surface
CA 2194530 A1 · Owner: Vigano, Eugenio · Inventors: Vigano, Eugenio
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 method for making aluminium boiler units for coffee making machines, in particular boiler units having a faceted upwardly tapering side surface. The method comprises the step of drawing an aluminium disc, so as to provide a hollow body, having substantially the configuration of the boiler unit to be made but, provided with a closed top end and an open bottom end. About the top end portion of the hollow body is formed, by a rolling operation a thread for, screw engaging with the top portion of the coffee making machine. Then, by a cutting operation is removed, the metal disc closing the top end portion of the boiler unit body, whereas the bottom end portion …
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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 January 7, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 7, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 7, 2019.
- 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.