US2905199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure actuator
Assignee: Westinghouse Air Brake Co
•
Filing: 1953-12-28
•
Granted: 1959-09-22
•
Expires: 1973-12-28
Abstract
No abstract record available.
Inventors
- 👤 Earle S Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:30
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/08; F15B15/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1937314A
Cited
US2241056A
Cited
US2465714A
Cited
US2493449A
Cited
US2665711A
Cited
US2718241A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |