US3052798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power supply for ionization devices in well bores
Assignee: Halliburton Co
•
Filing: 1959-03-31
•
Granted: 1962-09-04
•
Expires: 1979-03-31
Abstract
No abstract record available.
Inventors
- 👤 Ralph H Firminhac
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:30
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/16; G01T1/18; G01V; G01V5/00; G01V5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2368532A
Cited
US2361274A
Cited
US2369550A
Cited
US2740052A
Cited
US2628338A
Cited
US2675484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |