Patent DE675837C successfully refreshed from Google Patents.
US2903066A
Expired / Lapsed
US
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Well completion and well packer apparatus and methods of selectively manipulating a plurality of well packers
Assignee: Individual
•
Filing: 1955-08-01
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Granted: 1959-09-08
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Expires: 1975-08-01
Abstract
No abstract record available.
Inventors
- 👤 Cicero C Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:35
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/129; E21B33/1295; E21B33/122; E21B43/00; E21B43/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A WELL PACKER APPARATUS FOR DUAL PRODUCTION, INCLUDING A TUBULAR BODY HAVING FIRST AND SECOND LONGITUDINAL PASSAGES THERETHROUGH, A FIRST TUBING STRING EXTENDING THROUGH SAID FIRST LONGITUDINAL PASSAGE AND A SECOND TUBING STRING ADAPTED TO BE CONNECTED IN THE SECOND LONGITUDINAL PASSAGE, AN ANNULAR ELASTIC PACKING ELEMENT SURROUNDING SAID FIRST TUBING STRING BELOW SAID BODY, MEANS ON SAID TUBING STRING FOR SUPPORTING THE LOWER END OF SAID PACKING ELEMENT, A CYLINDER CONNECTED TO THE
Claim 2
Dependent Claim
74 words
A WELL PACKER APPARATUS FOR DUAL PRODUCTION, INCLUDING A TUBULAR BODY HAVING FIRST AND SECOND LONGITUDINAL PASSAGES THERETHROUGH, A FIRST TUBING STRING EXTENDING THROUGH SAID FIRST LONGITUDINAL PASSAGE AND A SECOND TUBING STRING ADAPTED TO BE CONNECTED IN THE SECOND LONGITUDINAL PASSAGE, AN ANNULAR ELASTIC PACKING ELEMENT SURROUNDING SAID FIRST TUBING STRING BELOW SAID BODY, MEANS ON SAID TUBING STRING FOR SUPPORTING THE LOWER END OF SAID PACKING ELEMENT, A CYLINDER CONNECTED 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) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |