US2915285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coring subterranean formations
Assignee: Jersey Production Research Co
•
Filing: 1956-05-23
•
Granted: 1959-12-01
•
Expires: 1976-05-23
Abstract
No abstract record available.
Inventors
- 👤 Fredric H Deily
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:12
CPC Classifications
E; E21; E21B; E21B25/00; E21B25/02; E21B25/04; E21B25/08; E21B33/00; E21B33/10; E21B4/00; E21B4/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE329896C
Cited
US1864113A
Cited
US2034257A
Cited
US2338670A
Cited
US2717762A
Cited
US2779195A
Cited
US2783971A
Cited
US2812160A
Cited
US2819038A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |