US3359488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Current comparing apparatus and shunt impedance elements
Assignee: Boeing Co
•
Filing: 1964-06-08
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Granted: 1967-12-19
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Expires: 1984-06-08
Abstract
No abstract record available.
Inventors
- 👤 John H Park
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:06
CPC Classifications
G; G01; G01R; G01R1/00; G01R1/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A CURRENT COMPARATOR COMPRISING IN COMBINATION: A FIRST SHUNT IMPEDANCE ELEMENT HAVING FIRST AND SECOND SECTIONS; A SECOND SHUNT IMPEDANCE ELEMENT HAVING FIRST AND SECOND SECTIONS; A FIRST CONDUCTOR CONNECTED IN COMMON TO EACH OF SAID FIRST SECTIONS; AN INDUCTIVE VOLTAGE DIVIDER CONNECTED BETWEEN SAID SECOND SECTIONS; A NULL VOLTAGE DETECTOR AND A RESISTOR CONNECTED IN SERIES CIRCUIT BETWEEN SAID FIRST CONDUCTOR AND TO AN INTERMEDIATE POINT OF SAID INDUCTIVE VOLTAGE DIVIDER; A CAPACITOR CONNECTED TO SAID
Claim 2
Dependent Claim
77 words
A CURRENT COMPARATOR COMPRISING IN COMBINATION: A FIRST SHUNT IMPEDANCE ELEMENT HAVING FIRST AND SECOND SECTIONS; A SECOND SHUNT IMPEDANCE ELEMENT HAVING FIRST AND SECOND SECTIONS; A FIRST CONDUCTOR CONNECTED IN COMMON TO EACH OF SAID FIRST SECTIONS; AN INDUCTIVE VOLTAGE DIVIDER CONNECTED BETWEEN SAID SECOND SECTIONS; A NULL VOLTAGE DETECTOR AND A RESISTOR CONNECTED IN SERIES CIRCUIT BETWEEN SAID FIRST CONDUCTOR AND TO AN INTERMEDIATE POINT OF SAID INDUCTIVE VOLTAGE DIVIDER; A CAPACITOR CONNECTED TO SAID
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-18 | 1971-06-19 | 1971-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-18 | 1975-06-19 | 1975-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-18 | 1979-06-19 | 1979-12-19 | $7700.00 | Window Closed / Lapsed |