Liquid refrigerant compositions
CA 2002316 A1 · Owner: Jolley, Scott T. · Inventors: Jolley, Scott T.; Grava, Arturs
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
L-2435R-l, Title: LIQUID REFRIGERANT COMPOSITIONS Abstract of the Disclosure, This invention relates to a liquid composition comprising, (A) a major amount of a fluorine-containing hydrocarbon, and, (B) a minor amount of a soluble organic lubricant free of acetylenic and aromatic unsatuLation and comprising a cyclic compound characterized by the following structure, (I), wherein R is H, a hydrocarbyl group or -R2COOR1, X is O or NR3, Y is CHR4, C=O C=NR5, R1 is H or a lower hydrocarbyl group R2 is an alkylene group, R3 is H, a hydrocarbyl group an alkylene, group joined to R5 when Y is C=N-R5 to form a cyclic moiety, -R6OR7, or -R8NR9R10, R4 is H or a hydrocarbyl group R5 is H or an …
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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 November 6, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 6, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 2011.
- 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.