US3101783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well packer
Assignee: Baker Hughes Oilfield Operations LLC
•
Filing: 1960-10-28
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Granted: 1963-08-27
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Expires: 1980-10-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Hiram H Fisher
- 👤 Julian D Keithahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:35
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/129; E21B33/1294; E21B33/1295; E21B33/12955
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
IN WELL PACKER APPARATUS TO BE SET IN A WELL BORE: A BODY; LONGITUDINALLY SPACED FIRST AND SECOND ABUTMENTS SURROUNDING SAID BODY; A SUPPORT SLEEVE AROUND SAID BODY AND SECURED TO SAID FIRST ABUTMENT AND SLIDABLE ALONG SAID SECOND ABUTMENT; NORMALLY RETRACTED PACKING MEANS ON SAID SLEEVE BETWEEN SAID ABUTMENTS; MEANS ON SAID BODY ENGAGEABLE WITH ONE OF SAID ABUTMENTS FOR EFFECTING MOVEMENT OF SAID ABUTMENTS TOWARD EACH OTHER TO EXPAND SAID PACKING MEANS OUTWARDLY; AND MEANS OPERATIVELY ASSOCIATED WITH SAID SLEEVE AND BODY AND MOVABLE BY SAID BODY FOR SHIFTING SAID SLEEVE IN A DIRECTION TO MAINTAIN SAID FIRST ABUTMENT AWAY FROM SAID SECOND ABUTMENT TO RETAIN SAID PACKING MEANS IN ITS RETRACTED POSITION.
Claim 2
Dependent Claim
115 words
IN WELL PACKER APPARATUS TO BE SET IN A WELL BORE: A BODY; LONGITUDINALLY SPACED FIRST AND SECOND ABUTMENTS SURROUNDING SAID BODY; A SUPPORT SLEEVE AROUND SAID BODY AND SECURED TO SAID FIRST ABUTMENT AND SLIDABLE ALONG SAID SECOND ABUTMENT; NORMALLY RETRACTED PACKING MEANS ON SAID SLEEVE BETWEEN SAID ABUTMENTS; MEANS ON SAID BODY ENGAGEABLE WITH ONE OF SAID ABUTMENTS FOR EFFECTING MOVEMENT OF SAID ABUTMENTS TOWARD EACH OTHER TO EXPAND SAID PACKING MEANS OUTWARDLY; AND MEANS OPERATIVELY ASSOCIATED WITH SAID SLEEVE AND BODY AND MOVABLE BY SAID BODY FOR SHIFTING SAID SLEEVE IN A DIRECTION TO MAINTAIN SAID FIRST ABUTMENT AWAY FROM SAID SECOND ABUTMENT TO RETAIN SAID PACKING MEANS IN ITS RETRACTED POSITION.
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |