US2927641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for sampling formation fluids
Assignee: Jersey Production Research Co
•
Filing: 1957-06-05
•
Granted: 1960-03-08
•
Expires: 1977-06-05
Abstract
No abstract record available.
Inventors
- 👤 Henry M Buck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:20
CPC Classifications
E; E21; E21B; E21B23/00; E21B23/02; E21B33/00; E21B33/10; E21B33/12; E21B33/126; E21B33/1265; E21B49/00; E21B49/08; E21B49/081; E21B49/083
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2147983A
Cited
US2589606A
Cited
US2632512A
Cited
US2728397A
Cited
US2725283A
Cited
US2776564A
Cited
US2783646A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-08 | 1963-09-07 | 1964-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-08 | 1967-09-07 | 1968-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-08 | 1971-09-07 | 1972-03-08 | $7700.00 | Window Closed / Lapsed |