Ventilation system for household appliances, in particular for washing machines
CA 2440436 A1 · Owner: Cerruti, Daniele · Inventors: Cerruti, Daniele
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Ventilation system for household appliances in particular for washing , machines, comprising a device (1) having at least: a chamber (CG) for housing an impeller (4); a suction duct (6), through which a first fluid in , particular damp air, is sucked into said chamber (CG) by means of said impeller (4); an ejection duct (CU), through which the first fluid sucked into said chamber (CG) is expelled from it by means of said impeller (4); a first movable shuttering means (7) for obstructing the said suction duct (6) at least partially, said first shuttering means (7) being movable at least partially inside said suction duct (6); first actuating means for producing the motion of said …
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 March 19, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 19, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 19, 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.