US3038338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instrument for and method of airborne gravitational geophysical exploration
Assignee: Individual
•
Filing: 1956-11-27
•
Granted: 1962-06-12
•
Expires: 1976-11-27
Abstract
No abstract record available.
Inventors
- 👤 Boyd D Boitnott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:41
CPC Classifications
G; G01; G01V; G01V7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE448003C
Cited
US1684229A
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US1652255A
Cited
US2322681A
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US2316915A
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GB571613A
Cited
US2618156A
Cited
US2809524A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |