Expired Canadian patentCanada
Process for the alkylation-transalkylation of aromatic hydrocarbons by methanol
CA 1088577 A · Owner: Institut Francais Du Petrole · Inventors: Marcilly, Christian
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordRead 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 October 28, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 28, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 28, 1977
GrantedOctober 28, 1980
Term endedOctober 28, 1997
Patent numberCA 1088577 A
Classification (IPC)C07C2/86 +2 more
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.