Patent US3107742A successfully refreshed from Google Patents.
US3107742A
Expired / Lapsed
US
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Apparatus for recovery of drill cuttings from subsurface earth formations
Assignee: Jersey Production Research Co
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Filing: 1960-12-29
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Granted: 1963-10-22
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Expires: 1980-12-29
Abstract
No abstract record available.
Inventors
- 👤 Jay C Woods
- 👤 William E Kanady
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:22
CPC Classifications
E; E21; E21B; E21B49/00; E21B49/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
100 words
A TOOL ADAPTED TO BE CONNECTED INTO A ROTARY DRILLING STRING FOR COLLECTING EARTH CUTTINGS FROM THE WELL BORE ANNULUS DURING DRILLING OPERATIONS, COMPRISING IN COMBINATION: INNER AND OUTER DRILL STEM SECTIONS CONCENTRICALLY ARRANGED FOR LONGITUDINAL MOVEMENT RELATIVE TO EACH OTHER FROM A TELESCOPED POSITION TO AN EXTENDED POSITION, A CENTRAL BORE FORMED BY SAID SECTIONS EXTENDING THROUGHOUT THE VERTICAL LENGTH THEREOF; MEANS FOR RELEASABLY LOCKING SAID SECTIONS IN SAID TELESCOPED POSITION; AT LEAST ONE PORT FORMED IN ONE OF SAID SECTIONS, SAID PORT BEING CLOSED WHEN SAID SECTIONS ARE IN SAID TELESCOPED POSITION AND OPEN IN SAID EXTENDED POSITION
References Cited (Backward Citations)
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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) | 1966-10-21 | 1967-04-22 | 1967-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-21 | 1971-04-22 | 1971-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-21 | 1975-04-22 | 1975-10-22 | $7700.00 | Window Closed / Lapsed |