US3344344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric charge responsive device
Assignee: Individual
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Filing: 1964-10-01
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Granted: 1967-09-26
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Expires: 1984-10-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Nathaniel B Wales
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:29
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/02; G01T1/14; G01T1/142
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A CHARGE RESPONSIVE DEVICE COMPRISING: AN ELECTROSTATIC INDUCTION ELECTRODE; AN INPUT ELECTRODE SPACED AND INSULATED FROM SAID INDUCTION ELECTRODE; A FIRST SHIELD CAGE SUBSTANTIALLY SURROUNDING AND INSULATED FROM BOTH SAID INDUCTION ELECTRODE AND SAID INPUT ELECTRODE; A SHIELDING VANE ELECTRICALLY CONNECTED TO SAID FIRST SHIELD CAGE; MECHANICAL MEANS ALTERNATELY TO INSERT AND TO WITHDRAW SAID VANE INTO SHIELDING RELATION BETWEEN SAID INPUT ELECTRODE AND SAID INDUCTION ELECTRODE; A LOAD IMPEDANCE CONNECTING SAID VANE AND SAID INDUCTION ELECTRODE; AND AMPLIFYING MEANS TO MEASURE THE CURRENT FLOWING IN SAID LOAD IMPEDANCE.
Claim 2
Dependent Claim
89 words
A CHARGE RESPONSIVE DEVICE COMPRISING: AN ELECTROSTATIC INDUCTION ELECTRODE; AN INPUT ELECTRODE SPACED AND INSULATED FROM SAID INDUCTION ELECTRODE; A FIRST SHIELD CAGE SUBSTANTIALLY SURROUNDING AND INSULATED FROM BOTH SAID INDUCTION ELECTRODE AND SAID INPUT ELECTRODE; A SHIELDING VANE ELECTRICALLY CONNECTED TO SAID FIRST SHIELD CAGE; MECHANICAL MEANS ALTERNATELY TO INSERT AND TO WITHDRAW SAID VANE INTO SHIELDING RELATION BETWEEN SAID INPUT ELECTRODE AND SAID INDUCTION ELECTRODE; A LOAD IMPEDANCE CONNECTING SAID VANE AND SAID INDUCTION ELECTRODE; AND AMPLIFYING MEANS TO MEASURE THE CURRENT FLOWING IN SAID LOAD IMPEDANCE.
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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |