Non-dusting agent and method of manufacturing
CA 1108809 A · Owner: Avera, Fitzhugh L. · Inventors: Avera, Fitzhugh L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A non-dusting relatively coarse particulate material is prepared from a relatively more finely divided material such as a pigment and an organic binder comprising a solid hexahydric alcohol with little or no affinity for water and a melting point within the range of 60 to 200° C. The finely divided material and binder are blended and cast with the aid of an aqueous carrier medium and then heated to form a solid layer which can be broken up into flake-like particles or chunks. These flakes or chunks are not "agglomerated" or "pellitized" in the usual sense of these terms. The relative fine particles in the flakes are, apparently, bound up in a a solid suspension comprising an adherent film …
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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 September 15, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 15, 1998.
- 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.