Patent US3622579A successfully refreshed from Google Patents.
US3622579A
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US
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Derivatives of 2-anilino-1,3-diazacyclopentene-(2)
Assignee: C.H. Boehringer Sohn AG and Co KG
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Filing: 1969-08-28
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Granted: 1971-11-23
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Expires: 1989-08-28
Abstract
Abstract The compounds are 2-(disubstituted-anilino)-1,3diazacyclopentenes-(2) and acid addition salts thereof, useful as hypotensives in warm-blooded animals.
Inventors
- 👤 Helmut Stahle
- 👤 Herbert Koppe
- 👤 Karl Zeile Ingelheim
- 👤 Wolfgang Hoeeke
- 👤 Hans-Wolfgang Samtleben
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:54
CPC Classifications
C; C07; C07D; C07D233/00; C07D233/04; C07D233/28; C07D233/44; C07D233/50
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
10 words
2-(2''-chloro-5''-methoxy-anilino)-1,3-diazacyclopentene-(2) or a nontoxic, pharmacologically acceptable acid addition salt thereof.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |