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Serving leading biopharmaceutical companies globally:

Boehringer Ingelheim
Fish and Richardson
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Generated: November 23, 2017

DrugPatentWatch Database Preview

Details for Patent: 4,503,067

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Summary for Patent: 4,503,067

Title: Carbazolyl-(4)-oxypropanolamine compounds and therapeutic compositions
Abstract:Carbazolyl-(4)-oxypropanolamine compounds of the formula ##STR1## wherein R.sub.1 is hydrogen, lower alkanoyl or aroyl; R.sub.2 is hydrogen, lower alkyl or arylalkyl; R.sub.3 is hydrogen or lower alkyl; R.sub.4 is hydrogen or lower alkyl, or when X is oxygen, R.sub.4 together with R.sub.5 can represent --CH.sub.2 --O--; X is a valency bond, --CH.sub.2 --, oxygen or sulfur; Ar is mono- or bicyclic aryl or pyridyl; R.sub.5 and R.sub.6 are individually selected from hydrogen, halogen, hydroxyl, lower alkyl, aminocarbonyl, lower alkoxy, aralkyloxy, lower alkylthio, lower alkylsulphinyl or lower alkylsulphonyl; R.sub.5 and R.sub.6 together can represent methylenedioxy; and the salts thereof with physiologically acceptable acids are outstandingly effective in the treatment and prophylaxis of circulatory and cardiac diseases, e.g., hypertension and angina pectoris.
Inventor(s): Wiedemann; Fritz (Weinheim-L/u/ tzelsachsen, DE), Kampe; Wolfgang (Heddesheim, DE), Thiel; Max (Mannheim, DE), Sponer; Gisbert (Hemsbach, DE), Roesch; Egon (Mannheim, DE), Dietmann; Karl (Mannheim-Vogelstang, DE)
Assignee: Boehringer Mannheim GmbH (Mannheim-Waldhof, DE)
Application Number:06/479,921
Patent Claim Types:
see list of patent claims
Compound; Use; Composition;

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Foreign Priority and PCT Information for Patent: 4,503,067

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Germany2815926Apr 13, 1978

International Patent Family for Patent: 4,503,067

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria375639► Subscribe
AustriaA276279► Subscribe
Australia4582079► Subscribe
Australia522975► Subscribe
Bulgaria61419► Subscribe
Canada1129416► Subscribe
Czechoslovakia227007► Subscribe
Czechoslovakia227047► Subscribe
Czechoslovakia9104200► Subscribe
German Democratic Republic143607► Subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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Serving leading biopharmaceutical companies globally:

Argus Health
Fish and Richardson
Farmers Insurance
US Army
Cantor Fitzgerald

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