N-(alpha-aminoalkylidene) phosphor-and phosphonamidates
CA 1070323 A · Owner: Velsicol Chemical Corporation · Inventors: Stach, Leonard J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention discloses chemical compounds of the formula, wherein X1 and X2 are independently selected from the group consisting of oxygen and sulfur; m is the integer 0 or 1; R1 is selected from the group consisting of hydrogen and alkyl; R2 is alkyl; R3 and R4 are independently selected from the group consisting of hydrogen and alkyl; R5 is selected from the group consisting of hydrogen, alkyl, alkoxy, alkylthio amino and, wherein Y is selected from the group conqisting of alkyl halogen, alkoxy, alkylthio, nitro and cyano; and n is an integer from 0 to 3; and R6 is selected from the aroup consisting of alkyl alkenyl, alkoxyalkyl and, wherein Z is selected from the group consisting of …
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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 January 22, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 22, 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.
Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.