US3302118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiplicative mixing with transistors
Assignee: US Philips Corp
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Filing: 1964-11-03
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Granted: 1967-01-31
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Expires: 1984-11-03
Abstract
No abstract record available.
Inventors
- 👤 Schoen Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:36
CPC Classifications
H; H03; H03D; H03D7/00; H03D7/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A TRANSISTOR MIXING CIRCUIT COMPRISING FIRST AND SECOND TRANSISTORS EACH HAVING A BASE, EMITTER AND COLLECTOR ELECTRODE, ALTERNATING CURRENT CONDUCTIVE MEANS CONNECTED BETWEEN THE EMITTER ELECTRODES OF SAID FIRST AND SECOND TRANSISTORS, A SOURCE OF A SIGNAL VOLTAGE, MEANS APPLYING SAID SIGNAL VOLTAGE BETWEEN THE BASE ELECTRODES OF SAID FIRST AND SECOND TRANSISTORS, A SOURCE OF A SIGNAL CURRENT, MEANS FOR APPLYING SAID CURRENT TO THE BASE-EMITTER JUNC-
Claim 2
Dependent Claim
68 words
A TRANSISTOR MIXING CIRCUIT COMPRISING FIRST AND SECOND TRANSISTORS EACH HAVING A BASE, EMITTER AND COLLECTOR ELECTRODE, ALTERNATING CURRENT CONDUCTIVE MEANS CONNECTED BETWEEN THE EMITTER ELECTRODES OF SAID FIRST AND SECOND TRANSISTORS, A SOURCE OF A SIGNAL VOLTAGE, MEANS APPLYING SAID SIGNAL VOLTAGE BETWEEN THE BASE ELECTRODES OF SAID FIRST AND SECOND TRANSISTORS, A SOURCE OF A SIGNAL CURRENT, MEANS FOR APPLYING SAID CURRENT TO THE BASE-EMITTER JUNC-
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |