Basic ethers, pharmaceutical preparation thereof and processes for preparing them
CA 1136635 A · Owner: Merck Patent Gesellschaft Mit Beschraenkter Haftung · Inventors: Kurmeier, Hans-Adolf; Wahlig, Helmut; Orth, Dieter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Ethers of the formula wherein G is an unsubstituted phenyl or benzyl group a phenyl or, benzyl group which is monosubstituted or disubstituted by halogen or alkyl of 1 - 6 C atoms; Z is 1-imidazolyl or 2-methyl-1-imidazolyl; A is -CH=CR -, -CO-CHR1 -, -CHOH-CHR1 - or CH2-CHR2 -; n is 1 2 or 3; R1, is H or alkyl of 1 - 4 C atoms; and R2 is alkyl of 1 - 4 C atoms, and, the physiologically acceptable acid addition salts thereof have valuable pharmacological properties.
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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 November 30, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 30, 1999.
- 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.