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Patent US2862414A successfully refreshed from Google Patents.
US2862414A
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Optical method for eliminating false strata from a seismic profile sheet
Assignee: California Research LLC
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Filing: 1955-07-27
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Granted: 1958-12-02
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Expires: 1975-07-27
Abstract
No abstract record available.
Inventors
- 👤 Lee P Stephenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:32
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/28; G01V1/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US527640A
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US1971119A
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US2192972A
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US2348411A
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US2345288A
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US2461166A
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US2476426A
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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) | 1961-12-01 | 1962-06-02 | 1962-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-01 | 1966-06-02 | 1966-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-01 | 1970-06-02 | 1970-12-02 | $7700.00 | Window Closed / Lapsed |