Liquid compositions containing carboxylic esters
CA 2094854 A1 · Owner: Davis, Kirk Emerson · Inventors: Davis, Kirk Emerson; Jolley, Scott Ted
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a liquid composition comprising (A) at least one fluorine-containing hydrocarbon containing one to three carbon atoms; and (B) at least one carboxylic ester of (I) a neo hydroxy compound selected from the group consisting of (i) a neo hydroxy compound with two or three hydroxyl groups (ii) a, mixture of neo hydroxy compounds having an average of less than about 3.5 hydroxyl groups per hydroxy compound, (iii) a neo hydroxy compound having five or more hydroxyl groups per hydroxy compound, and (iv) a mixture of neo hydroxy compounds having an average of greater than 4.5 hydroxyl groups per hydroxy compound, and (II) a combination of (a) a monocarboxylic acylating …
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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 April 26, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 26, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 26, 2015.
- 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.