US3429874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-polyhalogenoalkyl-2-oxo-1,3-dihydro-2h-1,4-benzodiazepines
Assignee: Merck Sharp & Dohme LLC
•
Filing: 1967-07-03
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Granted: 1969-02-25
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Expires: 1987-07-03
Abstract
No abstract record available.
Inventors
- 👤 John G Topliss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:10
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/44; C07D209/48; C07C; C07C309/00; C07C309/63; C07C309/64; C07C309/65; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/36; C07D213/38; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/24; C08G59/245
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |