US2659570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: Bendix Aviation Corp
•
Filing: 1949-11-17
•
Granted: 1953-11-17
•
Expires: 1969-11-17
Abstract
No abstract record available.
Inventors
- 👤 William A Werker
- 👤 Steenfeld Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:12
CPC Classifications
F; F16; F16K; F16K41/00; F16K41/10; F16K7/00; F16K7/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US181497A
Cited
US877875A
Cited
US978288A
Cited
US1381818A
Cited
FR498893A
Cited
DE361655C
Cited
US1374571A
Cited
FR780169A
Cited
US2061028A
Cited
US2144754A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |