Patent US3047795A successfully refreshed from Google Patents.
US3047795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bore hole logging methods and apparatus
Assignee: Sunoco Inc
•
Filing: 1958-01-17
•
Granted: 1962-07-31
•
Expires: 1978-01-17
Abstract
No abstract record available.
Inventors
- 👤 Pearson Grace Davie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:12
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/18; G01V3/20; G01V3/22
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2428034A
Cited
US2197227A
Cited
US2179832A
Cited
US2300823A
Cited
US2247417A
Cited
US2404622A
Cited
US2370818A
Cited
US2369403A
Cited
US2452515A
Cited
US2568241A
Cited
US2569390A
Cited
US2650067A
Cited
US2719363A
Cited
US2894722A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |