Automatic coffee-making machine with direct-current motor drive and worm screws
CA 2072736 C · Owner: Lionard Serv. S.R.L. · Inventors: Grossi, Lucio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An automatic coffee-making machine comprising in combined form a drive unit consisting of a direct-current motor (14) to the shaft (14a) of which is made integral a worm screw (14b) capable of actuating in an, axial direction, the sealed rod (16a) of a valve body (16) and of engaging with means (13,12) for transmission of movement with a slider (4), capable of moving at right angles to the axis of rotation of motor shaft (14a), there being made integral with such slider (4) by means, of appropriate couplings (5,5a,9a,10a) a shaped member (9) integral with the free end of the rod of piston (8) there being also provided, means (15,20) for the ejection and removal of the spent powdered coffee, …
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 June 29, 1992 and granted February 13, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 29, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 29, 2014.
- 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.