US2511503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed limit indicator
Assignee: Individual
•
Filing: 1946-09-03
•
Granted: 1950-06-13
•
Expires: 1966-09-03
Abstract
No abstract record available.
Inventors
- 👤 Greenberg George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:10
CPC Classifications
G; G01; G01P; G01P1/00; G01P1/07; G01P1/08; G01P1/10; G01P1/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US566613A
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US1362299A
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US1098358A
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US1263280A
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US1433989A
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US1567589A
Cited
US1547909A
Cited
US1527279A
Cited
US1789548A
Cited
US2384345A
Cited
US2452344A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |