Process for producing high viscosity index lubes
CA 1248484 A · Owner: Mobil Oil Corporation · Inventors: Garwood, William E.; Lucki, Stanley J.; Chester, Arthur W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A combination process for producing high viscosity index lubes from light olefins is provided wherein light olefins are first passed over a ZSM-23 catalyst and the liquid product therefrom is then processed over a ZSM-5 type catalyst to provide a lubricating oil with a higher viscosity, high Viscosity Index and low pour point in greater yield than obtained with either of the catalysts alone.
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 January 10, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 10, 2006.
- 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.