Hexahydropyrimidine compounds
CA 1085396 A · Owner: Hoechst Aktiengesellschaft · Inventors: Weber, Rolf-Ortwin; Gebert, Ulrich; Anagnostopulos, Hiristo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improvements relating to hexahydropyrimidine compounds" A b s t r a c t, Compounds of general formula wherein, R1 represents a radical selected from the group consisting of a hydrogen atom, an alkyl group having 1 or 2 carbon atoms a phenyl and a tolyl group;, R2 to R5 each represent a hydrogen atom or an alkyl group having at most 2 carbon atoms;, R6 represents a radical selected from the group consisting of a hydrogen atom, an anellated benzene nucleus 1 to 3, identical or different substituents selected from the group consisting of alkoxy groups having from 1 to 3 carbon atoms, halogen atoms, nitro and hydroxy groups alkyl groups having from 1 to 4 carbon atoms and such alkyl group being …
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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 September 9, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 9, 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
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.