US2783449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seismic velocity measurement
Assignee: Texaco Inc
•
Filing: 1953-08-28
•
Granted: 1957-02-26
•
Expires: 1973-08-28
Abstract
No abstract record available.
Inventors
- 👤 Robert J Loofbourrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:42
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/16; G01V1/18; G01V1/186; G01V1/40; G01V1/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2712124A
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US2440903A
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US2465696A
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GB657127A
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US2651027A
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GB718260A
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US2708485A
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US2717369A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-26 | 1960-08-27 | 1961-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-26 | 1964-08-27 | 1965-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-26 | 1968-08-27 | 1969-02-26 | $7700.00 | Window Closed / Lapsed |