Patent US3508540A successfully refreshed from Google Patents.
US3508540A
Expired / Lapsed
US
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Apparatus for direct measurement of skin conductance
Assignee: United States Department of the Navy
•
Filing: 1967-02-14
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Granted: 1970-04-28
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Expires: 1987-02-14
Abstract
No abstract record available.
Inventors
- 👤 John D Cavallari Jr
- 👤 John E Suwara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:58
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/05; A61B5/053; A61B5/0531
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2308933A
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US2339579A
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US2535249A
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US2829638A
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US2799269A
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US3085566A
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US3145297A
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US3129326A
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US3174478A
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US3316897A
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US3381230A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-27 | 1973-10-27 | 1974-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-27 | 1977-10-27 | 1978-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-27 | 1981-10-27 | 1982-04-28 | $7700.00 | Window Closed / Lapsed |