US3434046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic borehole casing collar locator
Assignee: Halliburton Co
•
Filing: 1965-12-20
•
Granted: 1969-03-18
•
Expires: 1985-12-20
Abstract
No abstract record available.
Inventors
- 👤 Robert O Wilson
- 👤 Paul Lorenzino Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:51
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/18; G01V3/26; E; E21; E21B; E21B47/00; E21B47/09; E21B47/092
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2459499A
Cited
GB599601A
Cited
US2719948A
Cited
US2768701A
Cited
US2857526A
Cited
US2870541A
Cited
US3216524A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |