Liner and liner system for cat box and cat box cover
CA 2316604 A1 · Owner: Engel, Eric M. · Inventors: Engel, Eric M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In an exemplary form, the invention provides a liner for a cat box cover designed to rest, on a cat box bottom. The liner comprises a sidewall for lining a substantial portion of a sidewall, of the cover otherwise exposed to cat urine during normal operation. The sidewall comprises at, least a fluid impermeable layer. The liner includes a top attached to the liner sidewall around a, substantial portion of a lateral periphery of the top. In addition to the fluid impermeable layer, the liner sidewall preferably includes a sorbent layer for absorbing cat urine and preferably a, claw-resistant layer for protecting the sorbent layer. The top of the liner comprises a fluid, impermeable …
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 August 24, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 24, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 24, 2022.
- 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.