US2736879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traffic signal
Assignee: Bristol Steel & Iron Works Inc
•
Filing: 1952-09-16
•
Granted: 1956-02-28
•
Expires: 1972-09-16
Abstract
No abstract record available.
Inventors
- 👤 Ferguson James Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:18
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/09; G08G1/095
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1552816A
Cited
US1711480A
Cited
US1836845A
Cited
FR716884A
Cited
US1847775A
Cited
US2182434A
Cited
US2107777A
Cited
US2294883A
Cited
US2553906A
Cited
DE821810C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-27 | 1959-08-29 | 1960-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-27 | 1963-08-29 | 1964-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-27 | 1967-08-29 | 1968-02-28 | $7700.00 | Window Closed / Lapsed |