5,6,7-quinoline carbanilates
CA 1259316 A · Owner: Usv Pharmaceutical Corporation · Inventors: Musser, John H.; Sutherland, Charles A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for preparing a compound of the formula and salt thereof, wherein: each R1 is H alkyl, alkoxy, carboxyl, alkylcarboxy, acylamino dialkylamino, trihalomethyl, halogen, nitro hydroxy, or cyano; each R2 is H, hydroxy alkyl, halogen, nitro, alkoxy, carboxyl alkylcarboxy, trihalomethyl, cyano, dialkylamino or acylamino; Z is O or S; each X is a chemical bond or an alkylene chain containing up to 7 carbon atoms in the principal chain and a total of up to 10 carbon atoms; n is 1 or 2; and alkyl per se and the alkyl moiety in alkoxy, alkylcarboxy and, dialkylamino and the acyl moiety in acylamino contain from 1 to 7 carbon atoms. There are also disclosed products obtained by the above …
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 September 12, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 12, 2006.
- 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.