US2761119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traffic control system
Assignee: Eastern Ind Inc
•
Filing: 1953-12-04
•
Granted: 1956-08-28
•
Expires: 1973-12-04
Abstract
No abstract record available.
Inventors
- 👤 John L Barker
- 👤 William C Pennell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:02
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/07; G08G1/081; G08G1/082
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2214199A
Cited
US2214253A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |