Patent US2935131A successfully refreshed from Google Patents.
US2935131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for completing a well in a plurality of zones
Assignee: Jersey Production Research Co
•
Filing: 1957-06-05
•
Granted: 1960-05-03
•
Expires: 1977-06-05
Abstract
No abstract record available.
Inventors
- 👤 John S Mccune
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:17
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1834946A
Cited
US2368428A
Cited
US2649916A
Cited
US2745497A
Cited
US2760578A
Cited
US2776013A
Cited
US2785754A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-03 | 1963-11-02 | 1964-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-03 | 1967-11-02 | 1968-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-03 | 1971-11-02 | 1972-05-03 | $7700.00 | Window Closed / Lapsed |