USRE28315E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooc.hi
Assignee: —
•
Filing: 1972-03-08
•
Granted: 1975-01-21
•
Expires: 1992-03-08
Abstract
Abstract IN WHICH R1 IS A HYDROGEN OR HALOGEN ATOM OR A TRIFLUOROMETHYL, LOWER ALKOXY, NITRO OR AMINO GROUP R2 IS A FURYL, A THIENYL, CYCLOHEXYL, LOWER ALKYL OR A PHENYL GROUP WHICH MAY BE SUBSTITUTED BY A HALOGEN ATOM OR BY A TRIFLUOROMETHYL, NITRO, LOWER ALKOXY OR LOWER ALKYL GROUP, AND R3 IS A HYDROGEN ATOM OR A LOWER ALKYL GROUP, AND R4 IS A LOWER CARBALKOXY, CARBAMOYL, A NLOWERALKYLCARBAMOYL, A N,N-DILOWERALKYLCARBAMOYL, A N(DILOWERALKYLAMINOALKYL) CARBAMOYL, A GROUP HAVING THE FORMULA -COOC AT IN WHICH CAT IS A CATION OF AN ALKALI METAL OR A SEMICATION OF AN ALKALINE EARTH METAL. DIAZEPINE 1-R3,2-(O=),3-R4,5-R2,7-R1-2,3-DIHYDRO-1H-1,4-BENZO- 1. A BENZODIAZEPINE HAVING THE FORMULA
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:36
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/02; C07D307/34; C07D307/38; C07D307/52; C07D243/00; C07D243/06; C07D243/10; C07D243/14; C07D243/16; C07D243/18; C07D243/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A BENZODIAZEPINE HAVING THE FORMULA
Claim 2
Dependent Claim
5 words
A BENZODIAZEPINE HAVING THE FORMULA
References Cited (Backward Citations)
US3410844A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |