Patent US3100015A successfully refreshed from Google Patents.
US3100015A
Expired / Lapsed
US
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Method of and apparatus for running equipment into and out of wells
Assignee: Regan Forge and Engineering Co
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Filing: 1959-10-05
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Granted: 1963-08-06
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Expires: 1979-10-05
Abstract
No abstract record available.
Inventors
- 👤 Regan John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:30
CPC Classifications
E; E21; E21B; E21B19/00; E21B33/00; E21B33/02; E21B33/03; E21B33/068; E21B33/072
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
83 words
A METHOD OF RUNNING EQUIPMENT WHICH VARIES IN WEIGHT INTO OR OUT OF A WELL UNDER PRESSURE, CHARACTERIZED BY THE USE OF A SUPPORTING MEANS FOR THE EQUIPMENT, AND INCLUDING THE STEPS OF: ENCLOSING A PORTION OF THE SUPPORTING MEANS AND AT LEAST A PORTION OF THE EQUIPMENT IN AN ELONGATED UPRIGHT CHAMBER WHICH COMMUNICATES WITH THE WELL; SEALING THE UPPER END OF SAID CHAMBER AROUND SAID SUPPORTING MEANS; RAISING OR LOWERING THE SUPPORTING MEANS AND THE EQUIPMENT RELATIVE TO SAID CHAMBER AND
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US1910762A
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US2600848A
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US2555145A
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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) | 1966-08-05 | 1967-02-04 | 1967-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-05 | 1971-02-04 | 1971-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-05 | 1975-02-04 | 1975-08-06 | $7700.00 | Window Closed / Lapsed |