Acidic solution of sparingly-soluble group iia complexes
CA 2369067 A1 · Owner: Carpenter, Robert H. · Inventors: Kemp, Maurice Clarence; Lewis, David E.; Cunha, Michael Anthony
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An acidic solution of sparingly-soluble Group IIA complexes ("AGIIS") its , preparation and its uses. The AGIIS can be prepared by mixing a mineral acid (such as sulfuric acid), and a Group IIA hydroxide (such as calcium hydroxide) or a Group IIA salt of a dibasic acid (such as calcium sulfate) or a mixture , of the two Group IIA compounds followed by removing the solid formed. The various uses include cleaning, food production decontamination, bioremediation, agricultural application medical application, and , detoxification of substances.
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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 February 14, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 14, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 14, 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.