US2672204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for seismic exploration
Assignee: Institute of Inventive Research
•
Filing: 1949-08-30
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Granted: 1954-03-16
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Expires: 1969-08-30
Abstract
No abstract record available.
Inventors
- 👤 Thomas C Poulter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:01
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)
FR701747A
Cited
US2377903A
Cited
US2156198A
Cited
US2259478A
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US2275735A
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US2378925A
Cited
US2580636A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-15 | 1957-09-14 | 1958-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-15 | 1961-09-14 | 1962-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-15 | 1965-09-14 | 1966-03-16 | $7700.00 | Window Closed / Lapsed |