Expired Canadian patentCanada
Process for catalytic dewaxing to improve pour point using zsm-11 catalyst containing hydrogenation/dehydrogenation component
CA 1281677 C · Owner: Mobil Oil Corporation · Inventors: Chester, Arthur W.; Yen, Jeffrey Hsing-Gan
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Waxy distillate is catalytically dewaxed using a catalyst comprising ZSM-11 and a hydrogenation/dehydrogenation component to lower the pour point of the distillate.
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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 March 19, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 19, 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.
FiledFebruary 27, 1985
GrantedMarch 19, 1991
Term endedMarch 19, 2008
Patent numberCA 1281677 C
Classification (IPC)C10G45/64
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.