Gypsum dust dilluents for use in pesticides and fertilising products
CA 1049284 A · Owner: Fabbian, Bruno · Inventors: Fabbian, Bruno
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Dust diluents and carriers of the gypsum series are prepared in granular or powder form, with absorbing properties for use in pesticides and leaf and soil fertilizing products from minerals of the gypsum series, particularly hydrated sulphates of selenite, sericulite, alabaster or anhydrous sulphate form, or the anhydrite form. The calcium sulfate is backed in order to produce baked, Alpha Beta, or hydraulic, gypsum according to the baking temperature; it is deactivated and water is added to form a dispersion which is allowed to settle. A substance is added which may be a salt of an alkaline or alkaline-earth metal, or double aluminum and potassium sulphate, a source of electrons, an oxygen …
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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
- Granted February 27, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 27, 1996.
- 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.