US2767726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pilot actuated compensating pressure regulator
Assignee: Westinghouse Air Brake Co
•
Filing: 1953-06-23
•
Granted: 1956-10-23
•
Expires: 1973-06-23
Abstract
No abstract record available.
Inventors
- 👤 Jacob E Feucht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:50
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/10; G05D16/101; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/263; Y10T137/7722; Y10T137/7781; Y10T408/00; Y10T408/16; Y10T408/17; Y10T408/172
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2606571A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |