US3703510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-carboxyalkyl or 1-carboxyalkenyl-1,4-benzodiazepin-2-ones
Assignee: Individual
•
Filing: 1970-06-01
•
Granted: 1972-11-21
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Expires: 1990-06-01
Abstract
Abstract 1-CARBOXYALKYL OR 1-CARBOXYALKENYL-1,4-BENZODIAZEPIN2-ONES ARE DISCLOSED. THESE BENZODIAZEPINE DERIVATIVES AND THEIR PHARMACEUTICALLY ACCEPTABLE SALTS ARE USEFUL AS ANTICONVULSANTS, SEDATIVES AND MUSCLE RELAXANTS. THESE COMPOUNDS, PARTICULARLY THEIR BASIC SALTS, FORM STABLE AQUEOUS SOLUTIONS AND THUS ARE ESPECIALLY ADVANTAGEOUS IN THAT THEY ARE AMENABLE TO FORMULATIONS SUITABLE FOR INJECTION.
Inventors
- 👤 James Valentine Earley
- 👤 Rodney Ian Fryer
- 👤 Leo Henryk Sternbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:53
CPC Classifications
C; C07; C07D; C07D243/00; C07D243/06; C07D243/10; C07D243/14; C07D243/16; C07D243/18; C07D243/24; C07D243/26
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) | 1975-11-21 | 1976-05-22 | 1976-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-21 | 1980-05-22 | 1980-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-21 | 1984-05-22 | 1984-11-21 | $7700.00 | Window Closed / Lapsed |