Patent US2925583A successfully refreshed from Google Patents.
US2925583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control apparatus responsive to traffic density
Assignee: Crouse Hinds Co
•
Filing: 1956-02-13
•
Granted: 1960-02-16
•
Expires: 1976-02-13
Abstract
No abstract record available.
Inventors
- 👤 Walter M Jeffers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:49
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/07; G08G1/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1593993A
Cited
US1929378A
Cited
US2176742A
Cited
US2265991A
Cited
US2374248A
Cited
US2413440A
Cited
US2384792A
Cited
US2594276A
Cited
US2750576A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |