US2897368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerial geophysical exploration with scintillation spectrometer
Assignee: Individual
•
Filing: 1954-03-18
•
Granted: 1959-07-28
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Expires: 1974-03-18
Abstract
No abstract record available.
Inventors
- 👤 Hans T F Lundberg
- 👤 Robert W Pringle
- 👤 Kenneth I Roulston
- 👤 George M Brownell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:45
CPC Classifications
G; G01; G01V; G01V5/00; G01V5/02; G01V5/025; G01T; G01T1/00; G01T1/16; G01T1/20; G01T1/208
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2423885A
Cited
US2617945A
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US2648012A
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US2659011A
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US2749446A
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US2755389A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-27 | 1963-01-26 | 1963-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-27 | 1967-01-26 | 1967-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-27 | 1971-01-26 | 1971-07-28 | $7700.00 | Window Closed / Lapsed |