US2954462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle length detector
Assignee: Westinghouse Air Brake Co
•
Filing: 1956-06-25
•
Granted: 1960-09-27
•
Expires: 1976-06-25
Abstract
No abstract record available.
Inventors
- 👤 Orval L Utt
- 👤 John W Ericson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:31
CPC Classifications
B; B61; B61L; B61L17/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1586989A
Cited
US2045201A
Cited
US2067147A
Cited
US2346518A
Cited
US2467455A
Cited
US2411573A
Cited
US2415168A
Cited
US2629865A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-27 | 1964-03-28 | 1964-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-27 | 1968-03-28 | 1968-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-27 | 1972-03-28 | 1972-09-27 | $7700.00 | Window Closed / Lapsed |