US2557714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shot pulse recording in reflection seismography
Assignee: Standard Oil Development Co
•
Filing: 1947-09-13
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Granted: 1951-06-19
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Expires: 1967-09-13
Abstract
No abstract record available.
Inventors
- 👤 Philip S Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:45
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/24; G01V1/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1843725A
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US2207398A
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US2203272A
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US2330216A
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US2317334A
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US2351456A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-18 | 1954-12-18 | 1955-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-18 | 1958-12-18 | 1959-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-18 | 1962-12-18 | 1963-06-19 | $7700.00 | Window Closed / Lapsed |