Combined odor controlling animal litter
CA 2019575 C · Owner: England, J. Bruce · Inventors: England, J. Bruce; Stanislowski, Anna G.; Ratcliff, Steven D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides, in one embodiment an odor, controlling animal litter comprising: a) adsorbent or absorbent particles; and b) an ammonia-controlling-effective amount of i) pine oil and ii) boric acid applied onto said particles. The litter can also include further adjuncts such as, fragrances, other antimicrobial additives and the like.
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 21, 1990 and granted September 17, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 21, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 21, 2012.
- 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.