US3806509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
6-acylaminophenyl-4,5-dihydropyridazones
Assignee: BASF SE
•
Filing: 1972-05-08
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Granted: 1974-04-23
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Expires: 1992-05-08
Abstract
Abstract NEW 6-ACYLAMINOPHENYL-4,5-DIHYDROPYRIDAZONES BEARING A SUBSTITUENT IN THE ACYL RADICAL, METHODS FOR THEIR PRODUCTION AND THEIR USE AS MEDICAMENTS, WHICH HAVE THE EFFECT OFLOWERING BLOOD PRESSURE, DILATING THE CARONARY ARTERIES AND COMBATTING INFLAMMATION.
Inventors
- 👤 J Schuster
- 👤 A Amann
- 👤 H Giertz
- 👤 R Lebkuecher
- 👤 H Koenig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:18
CPC Classifications
C; C07; C07D; C07D487/00; C07D487/02; C07D487/04; C07D237/00; C07D237/02; C07D237/06; C07D237/10; C07D237/14
Claims Analysis
Total Claims: 0
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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) | 1977-04-22 | 1977-10-22 | 1978-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-22 | 1981-10-22 | 1982-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-22 | 1985-10-22 | 1986-04-23 | $7700.00 | Window Closed / Lapsed |