US3550076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color zone system of traffic speed verification
Assignee: Individual
•
Filing: 1967-01-26
•
Granted: 1970-12-22
•
Expires: 1987-01-26
Abstract
No abstract record available.
Inventors
- 👤 Cornelius Varden Kent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:33
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/50; B60Q1/54; 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)
US1761239A
Cited
US2251623A
Cited
US2284633A
Cited
US2452344A
Cited
US2480290A
Cited
US2561582A
Cited
US3320586A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |