US3261009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seismic personnel sensor
Assignee: Melpar Inc
•
Filing: 1964-03-10
•
Granted: 1966-07-12
•
Expires: 1984-03-10
Abstract
No abstract record available.
Inventors
- 👤 Kenneth J Stetten
- 👤 Jr James Wallen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:16
CPC Classifications
G; G08; G08B; G08B13/00; G08B13/16; G08B13/1654; G08B13/1663; G01; G01V; G01V1/00; G01V1/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2007371A
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US2578347A
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US2709251A
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US2767393A
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US2826753A
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US2942247A
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US3158850A
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US3061829A
Cited
US3134970A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |