Hydraulic fluid compositions
CA 1067062 A · Owner: Sanyo Chemical Industries · Inventors: Sato, Teruyuki; Kawakatsu, Kunio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Hydraulic fluid compositions having a high boiling point and a boron content of 0.2 to 1.6 are formed from (a) a reaction product of (i) a polyalkylene glycol monoalkyl ether (ii) a, polyalkylene glycol and (iii) a polyoxyalkylene mono- or poly- ol having a molecular weight of 1000 to 5000 with (iv) a boron compound, (b) a polyalkylene glycol monoalkyl ether (c) a poly-, alkylene glycol and (d) a polyoxyalkylene mono- or poly- ol having a molecular weight of 1000 to 5000. - 1 -
Read the whole patent
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 November 27, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 27, 1996.
- 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.