Compositions containing preservative metals and their use for the preservation of wood and like materials and as fungicides
CA 1097005 A · Owner: Cuprinol Limited · Inventors: Hilditch, Edward A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compositions in the form of an aqueous solution comprising:, (a) a compound of a preservative metal; (b) a branched-chain carboxylic acid or a dipentenemono-carboxylic acid or a dipentene-di-carboxylic acid; and, (c) ammonia and/or an ammonium compound the amount, of ammonia and/or ammonium compound being at least sufficient to solubilize the compound (a) and to neutralize the acid (b) are useful for the preservation of wood and like materials by impregnation into or surface application to the material and are also useful as fungicides for the treatment of plants for agricultural and horticultural use.
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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 March 10, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 10, 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.