Patent US2992840A successfully refreshed from Google Patents.
US2992840A
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Pipe coupling having a deformable sealing element
Assignee: Eaton Aeroquip LLC
•
Filing: 1957-10-31
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Granted: 1961-07-18
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Expires: 1977-10-31
Abstract
No abstract record available.
Inventors
- 👤 James P Reynolds
- 👤 Hubert A Dykstra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:58
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/08; F16J15/0887; F16L; F16L23/00; F16L23/04; F16L23/08; F16L23/10
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-17 | 1965-01-16 | 1965-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-17 | 1969-01-16 | 1969-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-17 | 1973-01-16 | 1973-07-18 | $7700.00 | Window Closed / Lapsed |