US2604525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traffic control system
Assignee: Individual
•
Filing: 1949-03-28
•
Granted: 1952-07-22
•
Expires: 1969-03-28
Abstract
No abstract record available.
Inventors
- 👤 Zannettos Pierre Laerte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:35
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/09; G08G1/096
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1385807A
Cited
US1921423A
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US1648629A
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US2082479A
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US1866899A
Cited
US1824572A
Cited
US2111087A
Cited
US2480290A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |