N-alkyldiphenylamines
CA 1097372 A · Owner: Eli Lilly And Company · Inventors: O'Doherty, George O. P.; Clinton, Albert J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to novel diphenylamines having small alkyl substituents on the amino nitrogen, which are useful as intermediates for the preparation of rodenticidal diphenylamines. One phenyl ring has 2,4dinitro-6-trifluoromethyl substitution and the other is, substituted with no more than one methyl or trifluoromethyl group. The diphenylamines have the following structure: I, X-4869
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 March 10, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 10, 1998.
- 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.