Xylene isomerization
CA 1284510 C · Owner: Pellet, Regis Joseph · Inventors: Rabo, Jule Anthony; Coyghlin, Peter Kevin; Long, Gary Norman
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Xylene isomerization is carried out using specific non-zeolitic molecular sieve catalyst e.g. the silicoaluminophosphate molecular sieves of U.S. Patent No. 4,440,871, to provide improved production of p-xylene from C8 aromatic compounds and the conversion of ethylbenzene to a xylene.
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 May 28, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 28, 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.