US2941784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Logging while drilling
Assignee: Atlantic Richfield Co
•
Filing: 1955-07-05
•
Granted: 1960-06-21
•
Expires: 1975-07-05
Abstract
No abstract record available.
Inventors
- 👤 John L Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:27
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/18; G01V3/20; G01V3/24; E; E21; E21B; E21B47/00; E21B47/12; E21B47/125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2428034A
Cited
US2313384A
Cited
US2370814A
Cited
US2380520A
Cited
US2370818A
Cited
US2400170A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |