Patent US3215825A successfully refreshed from Google Patents.
US3215825A
Expired / Lapsed
US
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Multiplier circuit
Assignee: General Precision Inc
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Filing: 1961-07-03
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Granted: 1965-11-02
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Expires: 1981-07-03
Abstract
No abstract record available.
Inventors
- 👤 Morris M Birnbaum
- 👤 Phil M Salomon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:09
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/16; G06G7/164; G01; G01C; G01C11/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A HIGH FREQUENCY ANALOG MULTIPLER COMPRISING FOUR DIODES CONNECTED TO FORM A BRIDGE CIRCUIT, A PAIR OF RESISTORS CONNECTED ACROSS ONE SET OF OPPOSITE JUNCTIONS OF SAID BRIDGE CIRCUIT AND HAVING THEIR CENTER JUNCTION CONNECTED TO GROUND, MEANS FOR APPLYING THE SIGNALS TO BE MULTIPLIED TO SAID BRIDGE CIRCUIT ACROSS THE OTHER SET OF OPPOSITE JUNCTIONS THEREOF AND THE CENTER JUNCTION OF SAID RESISTORS, A VOLTAGE ADDING STATE, MEANS FOR APPLYING THE VOLTAGES DEVELOPED ACROSS ONE OF SDI RESISTORS DIRECTLY TO SAID ADDING STAGE, AND MEANS FOR APPLYING THE VOLTAGES DEVELOPED ACROSS THE OTHER RESISTOR IN INVERTED CONDITION DIRECTLY TO SAID ADDING STAGE.
Claim 2
Dependent Claim
103 words
A HIGH FREQUENCY ANALOG MULTIPLER COMPRISING FOUR DIODES CONNECTED TO FORM A BRIDGE CIRCUIT, A PAIR OF RESISTORS CONNECTED ACROSS ONE SET OF OPPOSITE JUNCTIONS OF SAID BRIDGE CIRCUIT AND HAVING THEIR CENTER JUNCTION CONNECTED TO GROUND, MEANS FOR APPLYING THE SIGNALS TO BE MULTIPLIED TO SAID BRIDGE CIRCUIT ACROSS THE OTHER SET OF OPPOSITE JUNCTIONS THEREOF AND THE CENTER JUNCTION OF SAID RESISTORS, A VOLTAGE ADDING STATE, MEANS FOR APPLYING THE VOLTAGES DEVELOPED ACROSS ONE OF SDI RESISTORS DIRECTLY TO SAID ADDING STAGE, AND MEANS FOR APPLYING THE VOLTAGES DEVELOPED ACROSS THE OTHER RESISTOR IN INVERTED CONDITION DIRECTLY TO SAID ADDING STAGE.
References Cited (Backward Citations)
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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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |