US3379964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well logging pad structure having pivotally interconnected members
Assignee: Schlumberger Technology Corp
•
Filing: 1965-04-02
•
Granted: 1968-04-23
•
Expires: 1985-04-02
Abstract
No abstract record available.
Inventors
- 👤 Francis F Segesman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:33
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/18; G01V3/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2770773A
Cited
US2930969A
Cited
US3060373A
Cited
US3132298A
Cited
US3167707A
Cited
US3267366A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |