Patents

Search tools Text Classification Chemistry Measure Numbers Full documents Title Abstract Claims All Any Exact Not Add AND condition These CPCs and their children These exact CPCs Add AND condition
Exact Exact Batch Similar Substructure Substructure (SMARTS) Full documents Claims only Add AND condition
Add AND condition
Application Numbers Publication Numbers Either Add AND condition

Classifications

C07D405/06 Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms

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CS168043B2

Czechoslovakia


Worldwide applications
1972 DE 1973 AT CH CH DD CS FI CS NL BG HU YU RO ES SE JP PL DK 1974 ES SU 1979 YU

Application CS615673A events
1973-09-04
Application filed