US2926759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High speed braking of rapid transit rail vehicles
Assignee: General Electric Co
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Filing: 1956-06-29
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Granted: 1960-03-01
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Expires: 1976-06-29
Abstract
No abstract record available.
Inventors
- 👤 Ira W Lichtenfels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:40
CPC Classifications
B; B60; B60L; B60L7/00; B60L7/24; B60L7/02; B60L7/04; B60L2200/00; B60L2200/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-01 | 1963-08-31 | 1964-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-01 | 1967-08-31 | 1968-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-01 | 1971-08-31 | 1972-03-01 | $7700.00 | Window Closed / Lapsed |