US3418315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of 7-chloro-1,3-dihydro-3-diethylamino - 3 - methyl - 5 - phenyl - 2h - 1,4-benzodiazepin-2-one
Assignee: Wyeth LLC
•
Filing: 1966-02-14
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Granted: 1968-12-24
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Expires: 1986-02-14
Abstract
No abstract record available.
Inventors
- 👤 Stanley C Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:14
CPC Classifications
C; C07; C07D; C07D243/00; C07D243/06; C07D243/10; C07D243/14; C07D243/16; C07D243/18; C07D243/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3198789A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |