Patent US1863369A successfully refreshed from Google Patents.
Patent US2861593A successfully refreshed from Google Patents.
US2861593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic remote control
Assignee: Westinghouse Air Brake Co
•
Filing: 1954-06-16
•
Granted: 1958-11-25
•
Expires: 1974-06-16
Abstract
No abstract record available.
Inventors
- 👤 Bowman Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:06
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/02; F15B13/06; E; E21; E21C; E21C35/00; E21C35/24; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87096
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US783313A
Cited
US1020303A
Cited
US1135917A
Cited
US1590578A
Cited
US1642623A
Cited
US1995052A
Cited
US2074618A
Cited
GB488489A
Cited
US2318236A
Cited
US2370526A
Cited
US2344913A
Cited
US2374714A
Cited
US2374588A
Cited
US2531802A
Cited
US2679862A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-24 | 1962-05-26 | 1962-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-24 | 1966-05-26 | 1966-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-24 | 1970-05-26 | 1970-11-25 | $7700.00 | Window Closed / Lapsed |