Composite clumping cat litter
CA 2349953 A1 · Owner: Bloomer, Larry D. · Inventors: Bloomer, Larry D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An economical process that combines bentonite or similar clays, that form a , clump, when in contact with cat urine with waste cellulosic fibrous materials preferably paper mill, sludge, to form a light weight scoopable (clumping) cat litter product. In the process, paper, mill cellulose waste is combined with bentonite clay (preferably sodium bentonite) in a, mixing auger in varying percentages depending upon the desired end weight of the finished, product, transferred to a secondary rotating drum mixer then to a rotating , drum dryer, and, from the dryer to a screening process. The finished product is a granule weighing between, 20 lbs./cubic foot and 50 lbs/cubic foot. The granule is …
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 11, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 11, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 11, 2023.
- 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.