US3289007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal rectifier utilizing opposite conductivity transistors
Assignee: AT&T Inc
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Filing: 1962-12-28
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Granted: 1966-11-29
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Expires: 1982-12-28
Abstract
No abstract record available.
Inventors
- 👤 Herbert M Zydney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:52
CPC Classifications
H; H03; H03D; H03D1/00; H03D1/14; H03D1/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A FULL WAVE SIGNAL RECTIFIER CIRCUIT COMPRISING A TRANSISTOR INCLUDING A BASE, EMITTER AND COLLECTOR, A FIRST AND SECOND IMPEDANCE CONNECTED IN SERIES ACROSS THE EMITTERTO-COLLECTOR PATH OF SAID TRANSISTOR, A SOURCE OF INPUT SIGNALS CONNECTED ACROSS THE EMITTER-TO-COLLECTOR PATH OF SAID TRANSISTOR, AND A LOAD CIRCUIT INTERCONNECTING THE BASE OF SAID TRANSISTOR AND THE JUNCTION OF SAID FIRST AND SECOND IMPEDANCE.
Claim 2
Dependent Claim
62 words
A FULL WAVE SIGNAL RECTIFIER CIRCUIT COMPRISING A TRANSISTOR INCLUDING A BASE, EMITTER AND COLLECTOR, A FIRST AND SECOND IMPEDANCE CONNECTED IN SERIES ACROSS THE EMITTERTO-COLLECTOR PATH OF SAID TRANSISTOR, A SOURCE OF INPUT SIGNALS CONNECTED ACROSS THE EMITTER-TO-COLLECTOR PATH OF SAID TRANSISTOR, AND A LOAD CIRCUIT INTERCONNECTING THE BASE OF SAID TRANSISTOR AND THE JUNCTION OF SAID FIRST AND SECOND IMPEDANCE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |