US2919164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load-controlled fluid pressure brake apparatus
Assignee: Westinghouse Air Brake Co
•
Filing: 1957-06-27
•
Granted: 1959-12-29
•
Expires: 1977-06-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles L Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:20
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/18; B60T8/1893
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2150576A
Cited
US2699972A
Cited
US2720429A
Cited
US2690932A
Cited
US2830849A
Cited
US2858166A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-28 | 1963-06-29 | 1963-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-28 | 1967-06-29 | 1967-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-28 | 1971-06-29 | 1971-12-29 | $7700.00 | Window Closed / Lapsed |