US2779608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined gate valve and coupling
Assignee: Eaton Aeroquip LLC
•
Filing: 1952-05-24
•
Granted: 1957-01-29
•
Expires: 1972-05-24
Abstract
No abstract record available.
Inventors
- 👤 John C Abbey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:19
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/26; F16L37/28; F16L37/38; F16L37/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB224205A
Cited
GB232056A
Cited
US2403620A
Cited
US2460137A
Cited
US2619367A
Cited
US2666656A
Cited
US2675829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-29 | 1960-07-30 | 1961-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-29 | 1964-07-30 | 1965-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-29 | 1968-07-30 | 1969-01-29 | $7700.00 | Window Closed / Lapsed |