US2630188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System and method of generating seismic waves in the earth
Assignee: Seismograph Service Corp
•
Filing: 1947-01-11
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Granted: 1953-03-03
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Expires: 1967-01-11
Abstract
No abstract record available.
Inventors
- 👤 James E Hawkins
- 👤 William E Pugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:39
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/02; G01V1/104; G01V1/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191128030A
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US1867098A
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FR701747A
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US1899970A
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US2064451A
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US2154548A
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US2331080A
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US2340314A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-02 | 1956-09-01 | 1957-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-02 | 1960-09-01 | 1961-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-02 | 1964-09-01 | 1965-03-03 | $7700.00 | Window Closed / Lapsed |