US3382365A
Expired / Lapsed
US
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Apparatus for measuring the half value of a current with a substantially exponentialvariation
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1964-03-30
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Granted: 1968-05-07
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Expires: 1984-03-30
Abstract
No abstract record available.
Inventors
- 👤 Lacour Jacques
- 👤 Poujois Robert
- 👤 Thuilierc Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:54
CPC Classifications
G; G21; G21C; G21C17/00; G21C17/14; G01; G01T; G01T1/00; G01T1/30; G04; G04F; G04F10/00; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
APPARATUS FOR MEASURING THE TIME CONSTANT OF A CURRENT OR A VOLTAGE HAVING AN EXPONENTIAL VARIATION COMPRISING, AN AMPLIFIER HAVING AN INPUT AND AN OUTPUT, MEANS FOR APPLYING TO SAID INPUT A CURRENT CORRESPONDING TO THE QUANTITY TO BE MEASURED, A RESISTANCE NETWORK COMPRISING A SERIES OF (N+1) RESISTORS OF WHICH THE FIRST HAS A GIVEN CONDUCTANCE GO AND THE N REMAINING RESISTORS HAVE AS THEIR CONDUCTANCE VALUE THE N FIRST TERMS OF A GEOMETRICAL PROGRESSION HAVING A COMMON RATIO OF 2 AND A FIRST TERM GO, ONE OF THE ENDS OF EACH OF SAID (N+1) RESISTORS BEING
Claim 2
Dependent Claim
98 words
APPARATUS FOR MEASURING THE TIME CONSTANT OF A CURRENT OR A VOLTAGE HAVING AN EXPONENTIAL VARIATION COMPRISING, AN AMPLIFIER HAVING AN INPUT AND AN OUTPUT, MEANS FOR APPLYING TO SAID INPUT A CURRENT CORRESPONDING TO THE QUANTITY TO BE MEASURED, A RESISTANCE NETWORK COMPRISING A SERIES OF (N+1) RESISTORS OF WHICH THE FIRST HAS A GIVEN CONDUCTANCE GO AND THE N REMAINING RESISTORS HAVE AS THEIR CONDUCTANCE VALUE THE N FIRST TERMS OF A GEOMETRICAL PROGRESSION HAVING A COMMON RATIO OF 2 AND A FIRST TERM GO, ONE OF THE ENDS OF EACH OF SAID (N+1) RESISTORS BEING
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |