US3376080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Empty and load brake control apparatus for railway cars
Assignee: Westinghouse Air Brake Co
•
Filing: 1966-09-30
•
Granted: 1968-04-02
•
Expires: 1986-09-30
Abstract
No abstract record available.
Inventors
- 👤 James H Kettering
- 👤 Francis R Racki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:47
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/18; B60T8/1893
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2173928A
Cited
US3300255A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |