Amidino-hydrazone derivatives
CA 1064503 A · Owner: Akzona Incorporated · Inventors: Bruins, Antonius H.N.M; Panneman, Harm J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Title: Amidino-hydrazone derivatives. Abstract of the Disclosure The invention relates to novel amidino-hydrazone derivatives of the general formula:, I, in which the dotted lines mean one extra bond starting from the (guanidine-)carbon atom to one of the adjacent nitrogen atoms, and, A stands for methylene, ethylene propylene or, butylene, which groups may optionally be substituted with alkyl (1-4 c), B stands for hydroxy alkyl (1-4 C), alkylthio, or alkoxy (1-4 C) halogen, trifluoromethyl, nitro, amino hydroxymethyl, acyloxy or an, alkylenedioxy group n is the number 0, 1, 2, 3, or 4, R1, R4 and R5 represent hydrogen or alkyl (1-4 C) with the, proviso that one of them is absent in view 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 October 16, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 16, 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.