US2902093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well apparatus and methods of running same in a well bore
Assignee: Individual
•
Filing: 1955-05-09
•
Granted: 1959-09-01
•
Expires: 1975-05-09
Abstract
No abstract record available.
Inventors
- 👤 Cicero C Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:00
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)
US1035850A
Cited
US1476727A
Cited
US1871867A
Cited
US2297044A
Cited
US2335355A
Cited
US2368428A
Cited
US2488931A
Cited
US2644524A
Cited
US2656151A
Cited
US2644527A
Cited
US2766831A
Cited
US2698056A
Cited
US2785754A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-31 | 1963-03-02 | 1963-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-31 | 1967-03-02 | 1967-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-31 | 1971-03-02 | 1971-09-01 | $7700.00 | Window Closed / Lapsed |