Patent US3095512A successfully refreshed from Google Patents.
US3095512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low level semiconductor switch having a voltage regulating zener diode in a feedbackpath
Assignee: Individual
•
Filing: 1960-10-25
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Granted: 1963-06-25
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Expires: 1980-10-25
Abstract
No abstract record available.
Inventors
- 👤 William R Little
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:52
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
AN IMPULSE PRODUCING CIRCUIT RESPONSIVE TO SIGNALS EXCEEDING A PREDETERMINED RATE OF CHANGE COMPRISING A FIRST TRANSISTOR, MEANS FOR COUPLING ONE POLARITY OF AN INPUT SIGNAL TO THE BASE OF SAID TRANSISTOR, A ZENER DIODE HAVING ONE TERMINAL CONNECTED TO THE COLLECTOR OF SAID TRANSISTOR, MEANS FOR COUPLING THE OTHER POLARITY OF THE INPUT SIGNAL TO THE OTHER TERMINAL OF SAID DIODE, A CAPACITOR CONNECTED BETWEEN THE OTHER TERMINAL OF SAID DIODE AND THE EMITTER OF SAID TRANSISTOR, A POWER SUPPLY HAVING A FIRST TERMINAL COUPLED TO THE COLLECTOR OF SAID TRANSISTOR AND A SECOND TERMINAL COUPLED TO THE EMITTER OF SAID TRANSISTOR, AND A RESISTOR CONNECTED BETWEEN THE OTHER TERMINAL OF SAID ZENER DIODE AND THE SECOND TERMINAL OF SAID POWER SUPPLY.
Claim 2
Dependent Claim
123 words
AN IMPULSE PRODUCING CIRCUIT RESPONSIVE TO SIGNALS EXCEEDING A PREDETERMINED RATE OF CHANGE COMPRISING A FIRST TRANSISTOR, MEANS FOR COUPLING ONE POLARITY OF AN INPUT SIGNAL TO THE BASE OF SAID TRANSISTOR, A ZENER DIODE HAVING ONE TERMINAL CONNECTED TO THE COLLECTOR OF SAID TRANSISTOR, MEANS FOR COUPLING THE OTHER POLARITY OF THE INPUT SIGNAL TO THE OTHER TERMINAL OF SAID DIODE, A CAPACITOR CONNECTED BETWEEN THE OTHER TERMINAL OF SAID DIODE AND THE EMITTER OF SAID TRANSISTOR, A POWER SUPPLY HAVING A FIRST TERMINAL COUPLED TO THE COLLECTOR OF SAID TRANSISTOR AND A SECOND TERMINAL COUPLED TO THE EMITTER OF SAID TRANSISTOR, AND A RESISTOR CONNECTED BETWEEN THE OTHER TERMINAL OF SAID ZENER DIODE AND THE SECOND TERMINAL OF SAID POWER SUPPLY.
References Cited (Backward Citations)
US2915600A
Cited
US2979667A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |