Catalytic hydrodewaxing process
CA 1306716 C · Owner: Mobil Oil Corporation · Inventors: Vartuli, James Clarke; Absil, Robert Peter L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The catalytic hydrodewaxing of a waxy hydrocarbon oil to provide a lube product of high viscosity index is carried out employing an extruded low acidity refractory oxide-bound intermediate pore size zeolite catalyst composition such as silica-bound ZSM-35.
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 August 25, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 25, 2009.
- 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.