Traction fluid
CA 1289550 C · Owner: Toa Nenryo Kogyo K.K. · Inventors: Tomizawa, Hirotaka; Yoshimura, Narihiko; Komatsu, Yasuji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A traction fluid comprising: (i) a diesteric compound or its derivative represented by the formula, wherein A' is an ester linkage of -COO- or -OOCn is a, number having a value of from 1 to 10 R1 is, independently selected from hydrogen and alkyl groups containing from 1 to 8 carbons, and R2 is independently selected from hydrogen and alkyl group containing from 1 to 3 carbon atoms; and, (ii) from 0.1 to 95% by weight of a branched poly-?-olefin.
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 September 24, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 24, 2008.
- 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.