US3261828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3h-1,4-benzodiazepine-2,5(1h,4h)-dione compounds
Assignee: F Hoffmann La Roche AG
•
Filing: 1962-10-04
•
Granted: 1966-07-19
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Expires: 1982-10-04
Abstract
No abstract record available.
Inventors
- 👤 Uskokovic Milan Radoje
- 👤 Wenner Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:07
CPC Classifications
C; C07; C07D; C07D243/00; C07D243/06; C07D243/10; C07D243/14; C07C; C07C233/00; C07C233/01; C07C233/45
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULA
Claim 2
Dependent Claim
12 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULA
References Cited (Backward Citations)
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Cited
US3091616A
Cited
US2202865A
Cited
US3021325A
Cited
US3103516A
Cited
US3051701A
Cited
US3100770A
Cited
US3075968A
Cited
US3173912A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |