Synthetic lubricant compositions with alphaolefin dimer
CA 2128098 C · Owner: Amoco Corporation · Inventors: Dileo, Thomas J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A synthetic oil composition comprises a major portion by weight of synthetic base oil having a kinetic viscosity of from 1.5 to 2.5 cSt at 100 °C and a minor portion by weight of one or more property enhancing additives for said base oil said base oil, comprising a major portion by weight of dimer of 1-decene said dimer having a kinetic viscosity of less than 250 cSt at -40°C a, kinetic viscosity of less than 1,000 cSt at -54°C and a pour point of less than -65°C.
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
- Filed February 3, 1993 and granted April 6, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 3, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 3, 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.