Expired Canadian patentCanada
Process for the co-production of aromatic carboxylates and alkyl iodides
CA 1304749 C · Owner: Agreda, Victor Hugo · Inventors: Agreda, Victor Hugo; Treece, Lanney Calvin; Steinmetz, Guy Ralph
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Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a process for the co-production of aromatic carboxylic esters and alkyl iodides by the carbonylation of aromatic iodides in the presence of an ether and a nickel catalyst. LE0798F
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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 July 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 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.
FiledOctober 19, 1988
GrantedJuly 7, 1992
Term endedJuly 7, 2009
Patent numberCA 1304749 C
Classification (IPC)C07C19/07 +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.