US2951452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote control system for a trimming locomotive
Assignee: SPX Technologies Inc
•
Filing: 1957-04-05
•
Granted: 1960-09-06
•
Expires: 1977-04-05
Abstract
No abstract record available.
Inventors
- 👤 Joseph G Karlet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:59
CPC Classifications
B; B61; B61L; B61L17/00; B61B; B61B1/00; B61L3/00; B61L3/02; B61L3/08; B61L3/12; B61L3/127
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |