US2638402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seismic prospecting
Assignee: Texaco Inc
•
Filing: 1947-06-09
•
Granted: 1953-05-12
•
Expires: 1967-06-09
Abstract
No abstract record available.
Inventors
- 👤 Burton D Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:26
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/28; G01V1/36; G01V1/362
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1950011A
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US2144812A
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US2155507A
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US2216452A
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US2243729A
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US2243730A
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US2420672A
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US2215297A
Cited
US2427421A
Cited
US2341303A
Cited
US2473469A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-11 | 1956-11-10 | 1957-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-11 | 1960-11-10 | 1961-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-11 | 1964-11-10 | 1965-05-12 | $7700.00 | Window Closed / Lapsed |