US3775405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2,6-dichlorobenzaldehyde hydrazones
Assignee: Wyeth LLC
•
Filing: 1971-09-03
•
Granted: 1973-11-27
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Expires: 1991-09-03
Abstract
Abstract HYDRAZONES OF 2,6-DICHLOROBENZALDEHYDE EXHIBITING CENTRAL NERVOUS SYSTEM DEPRESSANT ACTIVITY.
Inventors
- 👤 W Bruce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:21
CPC Classifications
C; C07; C07C; C07C251/00; C07C251/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |