US2452515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making geophysical explorations
Assignee: ConocoPhillips Co
•
Filing: 1943-12-13
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Granted: 1948-10-26
•
Expires: 1963-12-13
Abstract
No abstract record available.
Inventors
- 👤 Lawrence F Athy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:16
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/40; G01V1/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US602422A
Cited
US1654819A
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US1790080A
Cited
US2089983A
Cited
US2156052A
Cited
US2235089A
Cited
US2255721A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-26 | 1952-04-26 | 1952-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-26 | 1956-04-26 | 1956-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-26 | 1960-04-26 | 1960-10-26 | $7700.00 | Window Closed / Lapsed |