US3422345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for measuring the ratio and phase relation of an electric field to a correlated magnetic field
Assignee: Centre National de la Recherche Scientifique
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Filing: 1966-03-02
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Granted: 1969-01-14
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Expires: 1986-03-02
Abstract
No abstract record available.
Inventors
- 👤 Louis Marcel Muse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:26
CPC Classifications
G; G01; G01R; G01R33/00; G01R33/02; G01R33/025; G01V; G01V3/00; G01V3/08; G01V3/082
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2177346A
Cited
US2677801A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |