US3544958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective speed signs actuated by vehicle speed sensing
Assignee: Individual
•
Filing: 1967-09-11
•
Granted: 1970-12-01
•
Expires: 1987-09-11
Abstract
No abstract record available.
Inventors
- 👤 Leo J Carey
- 👤 Joseph N Mcintire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:48
CPC Classifications
G; G01; G01P; G01P3/00; G01P3/64; G01P3/68
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1958631A
Cited
US2325435A
Cited
US2347194A
Cited
US3054087A
Cited
US3142038A
Cited
US3381219A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |