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Patent US3136364A successfully refreshed from Google Patents.
US3136364A
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Hydraulically set well packer
Assignee: Baker Hughes Oilfield Operations LLC
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Filing: 1961-03-30
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Granted: 1964-06-09
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Expires: 1981-03-30
Abstract
No abstract record available.
Inventors
- 👤 William D Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:21
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/129; E21B33/1295
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
IN APPARATUS ADAPTED TO BE SET IN A WELL BORE: BODY MEANS; NORMALLY RETRACTED MEANS DISPOSED ABOUT SAID BODY MEANS AND ADAPTED TO BE EXPANDED OUTWARDLY INTO ENGAGEMENT WITH THE WALL OF THE WELL BORE; UPPER ACTUATING MEANS ENGAGING SAID NORMALLY RETRACTED MEANS; LOWER ACTUATING MEANS ENGAGING SAID NORMALLY RETRACTED MEANS, SAID UPPER AND LOWER ACTUATING MEANS BEING MOVABLE TOWARD EACH OTHER TO EXPAND SAID NORMALLY RETRACTED MEANS; HYDRAULICALLY OPERABLE MEANS RESPONSIVE TO THE HYDROSTATIC HEAD OF FLUID IN THE WELL BORE AND ADAPTED TO ACT SIMULTANEOUSLY ON SAID UPPER AND LOWER ACTUATING MEANS FOR RELATIVELY SHIFTING SAID UPPER AND LOWER ACTUAT-
Claim 2
Dependent Claim
102 words
IN APPARATUS ADAPTED TO BE SET IN A WELL BORE: BODY MEANS; NORMALLY RETRACTED MEANS DISPOSED ABOUT SAID BODY MEANS AND ADAPTED TO BE EXPANDED OUTWARDLY INTO ENGAGEMENT WITH THE WALL OF THE WELL BORE; UPPER ACTUATING MEANS ENGAGING SAID NORMALLY RETRACTED MEANS; LOWER ACTUATING MEANS ENGAGING SAID NORMALLY RETRACTED MEANS, SAID UPPER AND LOWER ACTUATING MEANS BEING MOVABLE TOWARD EACH OTHER TO EXPAND SAID NORMALLY RETRACTED MEANS; HYDRAULICALLY OPERABLE MEANS RESPONSIVE TO THE HYDROSTATIC HEAD OF FLUID IN THE WELL BORE AND ADAPTED TO ACT SIMULTANEOUSLY ON SAID UPPER AND LOWER ACTUATING MEANS FOR RELATIVELY SHIFTING SAID UPPER AND LOWER ACTUAT-
References Cited (Backward Citations)
US2735497A
Cited
US2507970A
Cited
US2695064A
Cited
US2739651A
Cited
US2765853A
Cited
US2795281A
Cited
US3008523A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |