Patent US3048675A successfully refreshed from Google Patents.
US3048675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-position manual control valve with step-by-step insuring feature
Assignee: Westinghouse Air Brake Co
•
Filing: 1959-09-29
•
Granted: 1962-08-07
•
Expires: 1979-09-29
Abstract
No abstract record available.
Inventors
- 👤 Paul E Olson
- 👤 Ellis E Hewitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:34
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/02; F16H61/0262; F15; F15B; F15B11/00; F15B11/08; F15B11/12; F15B11/121; F15B11/125; F15B13/00; F15B13/02; F15B13/04; G; G05; G05G; G05G7/00; G05G7/02; F16H2708/00; F16H2708/16; F16H2708/20; G05G2700/00; G05G2700/12; G05G2700/18; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86863; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636; Y10T74/20672
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB207922A
Cited
US1777303A
Cited
US2331109A
Cited
US2419908A
Cited
US2370213A
Cited
US2655167A
Cited
US2818476A
Cited
US2900836A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-06 | 1966-02-05 | 1966-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-06 | 1970-02-05 | 1970-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-06 | 1974-02-05 | 1974-08-07 | $7700.00 | Window Closed / Lapsed |