Patent US3083775A successfully refreshed from Google Patents.
US3083775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Formation packer
Assignee: Jersey Production Research Co
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Filing: 1959-10-05
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Granted: 1963-04-02
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Expires: 1979-10-05
Abstract
No abstract record available.
Inventors
- 👤 Garth W Nielson
- 👤 James D Henderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:33
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A WELL PACKER FOR USE IN AN OPEN HOLE BENEATH THE CASED PORTION OF A WELL BORE WHICH COMPRISES: A MANDREL MEANS; A PLURALITY OF ANNULAR PACKING ELEMENTS POSITIONED ABOUT SAID MANDREL MEANS AND LONGITUDINALLY ADJACENT TO EACH OTHER; FOLDED PACKER SUPPORT PLATES, SUPPORT MEANS SUPPORTING SAID PLATES AT THE LOWER END OF SAID MANDREL MEANS BELOW SAID PACKING ELEMENTS; A PLATE SPREADER ABOVE SAID PLATES; MEANS SUPPORTING SAID PLATE SPREADER ADJACENT SAID ANNULAR PACKING ELEMENTS A PLATE REVERSING SLEEVE POSITIONED ABOUT SAID MANDREL MEANS BELOW SAID PLATES; A LOWER TRAVEL COLLAR; A MANDREL NUT ATTACHABLE TO THE
Claim 2
Dependent Claim
98 words
A WELL PACKER FOR USE IN AN OPEN HOLE BENEATH THE CASED PORTION OF A WELL BORE WHICH COMPRISES: A MANDREL MEANS; A PLURALITY OF ANNULAR PACKING ELEMENTS POSITIONED ABOUT SAID MANDREL MEANS AND LONGITUDINALLY ADJACENT TO EACH OTHER; FOLDED PACKER SUPPORT PLATES, SUPPORT MEANS SUPPORTING SAID PLATES AT THE LOWER END OF SAID MANDREL MEANS BELOW SAID PACKING ELEMENTS; A PLATE SPREADER ABOVE SAID PLATES; MEANS SUPPORTING SAID PLATE SPREADER ADJACENT SAID ANNULAR PACKING ELEMENTS A PLATE REVERSING SLEEVE POSITIONED ABOUT SAID MANDREL MEANS BELOW SAID PLATES; A LOWER TRAVEL COLLAR; A MANDREL NUT ATTACHABLE TO THE
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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) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |