US2522433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seismic wave transmitter
Assignee: Standard Oil Development Co
•
Filing: 1947-10-24
•
Granted: 1950-09-12
•
Expires: 1967-10-24
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert S Dahlberg
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; G01V1/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1318739A
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US1369764A
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US1464729A
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FR667357A
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US1923959A
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US1808149A
Cited
US2135328A
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US2191120A
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US2231243A
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US2433746A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |