US2765181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balanced valved self-sealing coupling
Assignee: Eaton Aeroquip LLC
•
Filing: 1952-01-14
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Granted: 1956-10-02
•
Expires: 1972-01-14
Abstract
No abstract record available.
Inventors
- 👤 Butterfield Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:13
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/28; F16L37/30; F16L37/22; F16L37/23; F16L55/00; F16L55/10; F16L55/1007; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87917; Y10T137/87925; Y10T137/87941; Y10T137/87949
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1968421A
Cited
GB552435A
Cited
US2304390A
Cited
US2554390A
Cited
US2441363A
Cited
US2546671A
Cited
US2461705A
Cited
US2633857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |