US3746712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
6-(substituted-phenyl)-5-methyl-4,5-dihydro-3(2h)-pyridazinones
Assignee: Individual
•
Filing: 1971-06-08
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Granted: 1973-07-17
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Expires: 1991-06-08
Abstract
Abstract THIS DISCLOSURE DESCRIBES COMPOUNDS OF THE CLASS OF 6-(SUBSTITUTED-PHENYL)-5-METHYL-4,5-DIHYDRO-3 (2H)PYRIDAZINONES USEFUL AS HYPOTENSIVE AGENTS.
Inventors
- 👤 A Ross
- 👤 W Curran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:57
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/495; A61K31/50; C; C07; C07D; C07D237/00; C07D237/02; C07D237/04
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) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |