P.isobutyl-hydratropic acid ester with p.acetamido phenol and process for its preparation
CA 1057301 A · Owner: Aziende Chimiche Riunite Angelini Francesco-A.C.R.A.F. S.P.A. · Inventors: Baiocchi, Leandro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for preparing 4-acetoamidophenyl-p-isobutylhydratropate, consisting in reacting p-isobutyl-hydratropic acid with p-acetylaminophenol in the presence of a condensing agents such as acidic chlorides or dicyclohexyldicarbodi-imide. The product obtained can be used in animal or human therapy for many affections, such as from influenza to the most serious rheumatic diseases.
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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 June 26, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 26, 1996.
- 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
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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.