US3512288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote control mobile highway sign
Assignee: Individual
•
Filing: 1967-12-21
•
Granted: 1970-05-19
•
Expires: 1987-12-21
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:26
CPC Classifications
E; E01; E01F; E01F9/00; E01F9/60; E01F9/658; E01F9/662
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US293735A
Cited
US1346723A
Cited
US1587083A
Cited
US2432417A
Cited
US2714019A
Cited
US2843954A
Cited
US3246714A
Cited
US3399489A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |