Patent US3305022A successfully refreshed from Google Patents.
US3305022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well packing apparatus
Assignee: Schlumberger Technology Corp
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Filing: 1965-08-09
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Granted: 1967-02-21
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Expires: 1985-08-09
Abstract
No abstract record available.
Inventors
- 👤 Iii James W Kisling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:25
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/129; E21B33/1295; E21B33/12955
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A PACKER FOR USE IN A WELL BORE COMPRISING: TELESCOPING MANDREL AND HOUSING MEMBERS, SAID MEMBERS BEING RELATIVELY MOVABLE BETWEEN UPPER, LOWER AND INTERMEDIATE POSITIONS; PACK-OFF MEANS ON ONE OF SAID MEMBERS; HYDRAULICALLY ACTUATABLE WALL-ENGAGING MEANS ON SAID HOUSING MEMBER, HYDRAULIC MEANS FOR APPLYING PRESSURE TO SAID WALL-ENGAGING MEANS; AND MEANS RESPONSIVE TO POSITIONING OF SAID MEMBERS IN UPPER AND LOWER POSITIONS FOR ACTUATING SAID HYDRAULIC MEANS.
Claim 2
Dependent Claim
67 words
A PACKER FOR USE IN A WELL BORE COMPRISING: TELESCOPING MANDREL AND HOUSING MEMBERS, SAID MEMBERS BEING RELATIVELY MOVABLE BETWEEN UPPER, LOWER AND INTERMEDIATE POSITIONS; PACK-OFF MEANS ON ONE OF SAID MEMBERS; HYDRAULICALLY ACTUATABLE WALL-ENGAGING MEANS ON SAID HOUSING MEMBER, HYDRAULIC MEANS FOR APPLYING PRESSURE TO SAID WALL-ENGAGING MEANS; AND MEANS RESPONSIVE TO POSITIONING OF SAID MEMBERS IN UPPER AND LOWER POSITIONS FOR ACTUATING SAID HYDRAULIC MEANS.
References Cited (Backward Citations)
US2638168A
Cited
US2925128A
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US2880805A
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US3164210A
Cited
US3233675A
Cited
US3253656A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |