US3270819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for mechanically setting well tools
Assignee: Baker Hughes Oilfield Operations LLC
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Filing: 1964-03-09
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Granted: 1966-09-06
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Expires: 1984-03-09
Abstract
No abstract record available.
Inventors
- 👤 Gordon E Thrane
- 👤 Jr Horace W Mczilkey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:57
CPC Classifications
E; E21; E21B; E21B23/00; E21B23/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
IN WELL APPARATUS ADAPTED TO BE SET IN A WELL BORE; BODY MEANS ADAPTED TO BE SECURED TO A RUNNING-IN STRING FOR LOWERING THE APPARATUS IN THE WELL BORE; NORMALLY RETRACTED MEANS ON SAID BODY MEANS EXPANDIBLE LATERALLY OUTWARDLY OF SAID BODY MEANS; SPRING MEANS FOR SHIFTING SAID NORMALLY RETRACTED MEANS LATERALLY OUTWARDLY OF SAID BODY MEANS; A RETAINER ENGAGING SAID NORMALLY RETRACTED MEANS TO PREVENT EXPANSION OF SAID NORMALLY RETRACTED MEANS BY SAID SPRING MEANS; MEANS RELEASABLY CONNECTING SAID RETAINER TO SAID BODY MEANS TO PREVENT RELATIVE SHIFTING OF SAID RETAINER FROM ENGAGEMENT WITH SAID NORMALLY RETRACTED MEANS, INCLUDING A DEVICE THREADED ON SAID BODY MEANS AND MOVABLE UPWARDLY ON SAID BODY MEANS AND ALONG SAID RETAINER IN RESPONSE TO ROTATION OF SAID BODY MEANS TO PERMIT SAID BODY MEANS TO SHIFT SAID NORMALLY RETRACTED MEANS LONGITUDINALLY OF SAID RETAINER TO RELEASED POSITION FROM SAID RETAINER.
Claim 2
Dependent Claim
147 words
IN WELL APPARATUS ADAPTED TO BE SET IN A WELL BORE; BODY MEANS ADAPTED TO BE SECURED TO A RUNNING-IN STRING FOR LOWERING THE APPARATUS IN THE WELL BORE; NORMALLY RETRACTED MEANS ON SAID BODY MEANS EXPANDIBLE LATERALLY OUTWARDLY OF SAID BODY MEANS; SPRING MEANS FOR SHIFTING SAID NORMALLY RETRACTED MEANS LATERALLY OUTWARDLY OF SAID BODY MEANS; A RETAINER ENGAGING SAID NORMALLY RETRACTED MEANS TO PREVENT EXPANSION OF SAID NORMALLY RETRACTED MEANS BY SAID SPRING MEANS; MEANS RELEASABLY CONNECTING SAID RETAINER TO SAID BODY MEANS TO PREVENT RELATIVE SHIFTING OF SAID RETAINER FROM ENGAGEMENT WITH SAID NORMALLY RETRACTED MEANS, INCLUDING A DEVICE THREADED ON SAID BODY MEANS AND MOVABLE UPWARDLY ON SAID BODY MEANS AND ALONG SAID RETAINER IN RESPONSE TO ROTATION OF SAID BODY MEANS TO PERMIT SAID BODY MEANS TO SHIFT SAID NORMALLY RETRACTED MEANS LONGITUDINALLY OF SAID RETAINER TO RELEASED POSITION FROM SAID RETAINER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |