Garbage disposer
CA 2034575 C · Owner: Shinya, Narao · Inventors: Shinya, Narao
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is disclosed a garbage disposer which pulverizes kitchen garbage, drys it and discharges only the yield water into a sewage system. This apparatus includes a garbage pulverizing segment and a garbage drying segment both of, which are driven by a common motor. The garbage drying segment includes a screw with a helical blade and a cylindrical screen disposed around the screw. In this garbage drying segment the garbage is compressed and dried as it is pressure-fed by the screw within the screen. The water thus produced flows past the screen and is discharged from the garbage drying segment into the sewage system while the dried, garbage is collected in a bag.
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 January 18, 1991 and granted October 1, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 18, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 18, 2013.
- 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.