Pet litter box
CA 2124597 A1 · Owner: De La Chevrotiere, Jean-Francois · Inventors: De La Chevrotiere, Jean-Francois
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pet litter box having a built in filter comprising a base portion which has a litter receiving area and a cover portion which has a screen member attached thereto, the screen member extending below the underside of the cover and being spaced therefrom to define a waste receiving pocket between the underside of the cover and the screening member. When it is desired to clean the litter box, the cover is placed on the base and the full assembly is rotated such that the used litter will enter the waste receiving pocket with the screen member filtering any clumping and/or solid material therefrom while permitting passage of the non used litter material back to the litter receiving area of the …
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 May 26, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 26, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 26, 2016.
- 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.