Patent US2717656A successfully refreshed from Google Patents.
US2717656A
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US
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Method and apparatus for use in surveying earth formation by explosion and seismograph
Assignee: Individual
•
Filing: 1951-10-31
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Granted: 1955-09-13
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Expires: 1971-10-31
Abstract
No abstract record available.
Inventors
- 👤 Clyde E Bannister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:58
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/02; G01V1/04; G01V1/047; G01V1/104
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2434452A
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US2587301A
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US2615522A
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US2545380A
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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) | 1958-09-12 | 1959-03-14 | 1959-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-12 | 1963-03-14 | 1963-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-12 | 1967-03-14 | 1967-09-13 | $7700.00 | Window Closed / Lapsed |