US3401574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple valve control device with position lock
Assignee: Westinghouse Air Brake Co
•
Filing: 1966-07-21
•
Granted: 1968-09-17
•
Expires: 1986-07-21
Abstract
No abstract record available.
Inventors
- 👤 Doolittle Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:32
CPC Classifications
G; G05; G05G; G05G25/00; G05G25/04; F; F16; F16K; F16K11/00; F16K11/10; F16K11/14; F16K11/18; G05G5/00; G05G5/06; G05G9/00; G05G9/02; G05G9/04; G05G9/047; G05G2009/04703; G05G2009/04714; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20018; Y10T74/20085; Y10T74/20098; Y10T74/2014; Y10T74/20159; Y10T74/20201; Y10T74/20576; Y10T74/20582; Y10T74/20612; Y10T74/20618; Y10T74/20636; Y10T74/20666
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |