Synthetic traction fluid
CA 1293515 C · Owner: Toa Nenryo Kogyo K.K. · Inventors: Yoshimura, Narihiko; Tomizawa, Hirotaka; Komatsu, Yasuji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A synthetic traction fluid comprising as a base, oil, at least one ester or its derivative selected from monoesters or their derivatives, and triesters or their derivatives represented by the formula wherein Y is independently selected from - A' - and - OH with A' being an ester linkage and R1 being independently selected from hydrogen and C1 to C8 alkyl groups, with the proviso that at least one Y is - A' - , and R2 is independently selected from hydrogen and C1 to C3 alkyl groups.
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 December 24, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 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.