US3222359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing benzodiazepine compounds
Assignee: —
•
Filing: —
•
Granted: 1965-12-07
•
Expires: 1982-12-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:23
CPC Classifications
C; C07; C07D; C07D243/00; C07D243/06; C07D243/10; C07D243/14; C07D243/16
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
10 words
A METHOD FOR THE PREPARATION OF COMPOUNDS OF THE FORMULA
Claim 2
Independent Claim
10 words
A METHOD FOR THE PREPARATION OF COMPOUNDS OF THE FORMULA
Claim 3
Dependent Claim
10 words
A PROCESS FOR THE PREPARATION OF COMPOUNDS OF THE FORMULA
Claim 4
Dependent Claim
10 words
A PROCESS FOR THE PREPARATION OF COMPOUNDS OF THE FORMULA
References Cited (Backward Citations)
US1946058A
Cited
US2431285A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |