Preservative composition
CA 1306663 C · Owner: Commonwealth Scientific And Industrial Research Organization · Inventors: Greaves, Harry; Watkins, John Bernard; Chin, Chen Woo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, The present invention concerns stable emulsions particularly useful for preserving timber, and for the treatment of other substances. Stable emulsions are produced by simultaneously bringing together and emulsifying water and oil phases under conditions of ultra high shear wherein the, emulsion also contains at least one cationic non-ionic and/or amphoteric, emulsifying agent which emulsifies said emulsions without a chemically antagonistic reaction occurring. The invention also relates to an apparatus for producing the emulsions of the present invention wherein the apparatus facilitates the emulsification process by providing an inlet enabling the hydrophobic and hydrophilic …
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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 August 25, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 25, 2009.
- 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.