Patent US2940796A successfully refreshed from Google Patents.
US2940796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load-responsive brake control apparatus
Assignee: Westinghouse Bremsen GmbH
•
Filing: 1958-07-01
•
Granted: 1960-06-14
•
Expires: 1978-07-01
Abstract
No abstract record available.
Inventors
- 👤 Ortmann Walter
- 👤 Neubeck Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:40
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/18; B60T8/1837; B60T8/1843; B60T8/1812; B60T8/1818
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2150576A
Cited
US2184551A
Cited
US2313991A
Cited
DE833825C
Cited
US2720428A
Cited
US2720429A
Cited
FR1086706A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |