US3215207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well tools
Assignee: Otis Engineering Corp
•
Filing: 1962-09-20
•
Granted: 1965-11-02
•
Expires: 1982-09-20
Abstract
No abstract record available.
Inventors
- 👤 Phillip S Sizer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:14
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/129; E21B33/1295
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A WELL PACKER INCLUDING: A TUBULAR MANDREL; UPPER AND LOWER ANCHORING MEANS CARRIED BY SAID MANDREL AND MOVABLE LATERALLY OF SAID MANDREL BETWEEN IN INITIAL RETRACTED POSITION AND AN EXPANDED ANCHORING POSITION UPPER AND LOWER EXPANDER MEANS MOVABLY CARRIED BY SAID MANDREL AND ENGAGEABLE WITH SAID ANCHORING MEANS FOR MOVING THEM FROM RETRACTED TO EXPANDED POSITION UPON LONGITUDINAL MOVEMENT OF SAID EXPANDER MEANS IN OPPOSITE DIRECTIONS ON SAID MANDREL, ONE OF SAID EXPANDER MEANS INCLUDING EXPANDABLE SEAL MEANS MOVABLE TO EXPANDED POSITION WHEN OUTWARD MOVEMENT OF THE ANCHORING MEANS HAS BEEN ARRESTED, SAID MANDREL AND SAID ANCHORING MEANS HAVING CO-ENGAGEABLE MEANS PREVENTING LONTIDUDINAL MOVEMENT OF SAID ANCHORING MEANS DURING MOVEMENT OF SAID ANCHORING MEANS TO EXPANDED POSITION BY SAID EXPANDER MEANS; AND MEANS FOR MOVING SAID EXPANDER MEANS RELATIVE TO SAID ANCHORING MEANS FOR MOVING SAID ANCHORING MEANS TO EXPANDED POSITION.
Claim 2
Dependent Claim
141 words
A WELL PACKER INCLUDING: A TUBULAR MANDREL; UPPER AND LOWER ANCHORING MEANS CARRIED BY SAID MANDREL AND MOVABLE LATERALLY OF SAID MANDREL BETWEEN IN INITIAL RETRACTED POSITION AND AN EXPANDED ANCHORING POSITION UPPER AND LOWER EXPANDER MEANS MOVABLY CARRIED BY SAID MANDREL AND ENGAGEABLE WITH SAID ANCHORING MEANS FOR MOVING THEM FROM RETRACTED TO EXPANDED POSITION UPON LONGITUDINAL MOVEMENT OF SAID EXPANDER MEANS IN OPPOSITE DIRECTIONS ON SAID MANDREL, ONE OF SAID EXPANDER MEANS INCLUDING EXPANDABLE SEAL MEANS MOVABLE TO EXPANDED POSITION WHEN OUTWARD MOVEMENT OF THE ANCHORING MEANS HAS BEEN ARRESTED, SAID MANDREL AND SAID ANCHORING MEANS HAVING CO-ENGAGEABLE MEANS PREVENTING LONTIDUDINAL MOVEMENT OF SAID ANCHORING MEANS DURING MOVEMENT OF SAID ANCHORING MEANS TO EXPANDED POSITION BY SAID EXPANDER MEANS; AND MEANS FOR MOVING SAID EXPANDER MEANS RELATIVE TO SAID ANCHORING MEANS FOR MOVING SAID ANCHORING MEANS TO EXPANDED POSITION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |