Fine particle size lime slurries and their production
CA 2444916 A1 · Owner: Butters, Martin Peter · Inventors: Mcleod, Gloria; Butters, Martin Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Calcium hydroxide slurries and processes for their production that have lower , mean particle-sizes than otherwise equivalent slurries produced using alternative processes or whereby the mean particle-size is reduced more efficiently than when using alternative processes to produce otherwise equivalent slurries.
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 2, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 2, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 2, 2024.
- 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.