Patent US3395758A successfully refreshed from Google Patents.
US3395758A
Expired / Lapsed
US
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Lateral flow duct and flow control device for wells
Assignee: Otis Engineering Corp
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Filing: 1964-05-27
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Granted: 1968-08-06
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Expires: 1984-05-27
Abstract
No abstract record available.
Inventors
- 👤 Warner M Kelly
- 👤 James E Reagan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:13
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/11; E21B43/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A FLOW CONTROL DEVICE INCLUDING: A NIPPLE HAVING A LONGITUDINAL PASSAGE AND A LATERAL PORT COMMUNICATING THE EXTERIOR OF THE NIPPLE WITH THE LONGITUDINAL PASSAGE INTERMEDIATE ITS ENDS; FULLY EXTENDED DUCT MEANS ON SAID NIPPLE EXTENDING LATERALY OUTWARDLY BEYOND THE OUTER PERIPHERY OF SAID NIPPLE AND PROVIDING A LATERAL PASSAGE COMMUNICATING AT ITS INNER END WITH SAID LATERAL PORT, THE OUTER END OF SAID LATERAL PASSAGE BEING SPACED RADIALLY OUTWARDLY BEYOND THE OUTER PERIPHERY OF SAID NIPPLE; AND VALVE MEANS CARRIED BY SAID NIPPLE AND OPERABLE BY MEANS MOVABLE IN SAID LONGITUDINAL PASSAGE FOR SELECTIVELY OPENING AND CLOSING SAID LATERAL PORT.
Claim 2
Dependent Claim
101 words
A FLOW CONTROL DEVICE INCLUDING: A NIPPLE HAVING A LONGITUDINAL PASSAGE AND A LATERAL PORT COMMUNICATING THE EXTERIOR OF THE NIPPLE WITH THE LONGITUDINAL PASSAGE INTERMEDIATE ITS ENDS; FULLY EXTENDED DUCT MEANS ON SAID NIPPLE EXTENDING LATERALY OUTWARDLY BEYOND THE OUTER PERIPHERY OF SAID NIPPLE AND PROVIDING A LATERAL PASSAGE COMMUNICATING AT ITS INNER END WITH SAID LATERAL PORT, THE OUTER END OF SAID LATERAL PASSAGE BEING SPACED RADIALLY OUTWARDLY BEYOND THE OUTER PERIPHERY OF SAID NIPPLE; AND VALVE MEANS CARRIED BY SAID NIPPLE AND OPERABLE BY MEANS MOVABLE IN SAID LONGITUDINAL PASSAGE FOR SELECTIVELY OPENING AND CLOSING SAID LATERAL PORT.
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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) | 1971-08-06 | 1972-02-05 | 1972-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-06 | 1976-02-05 | 1976-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-06 | 1980-02-05 | 1980-08-06 | $7700.00 | Window Closed / Lapsed |