Patent US2919043A successfully refreshed from Google Patents.
Patent US3184604A successfully refreshed from Google Patents.
US3184604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-duty-cycle multivibrator
Assignee: Individual
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Filing: 1961-07-31
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Granted: 1965-05-18
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Expires: 1981-07-31
Abstract
No abstract record available.
Inventors
- 👤 Duanc O Hale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:21
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/284
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
A MONOSTABLE MULTIVIBRATOR CIRCUIT, COMPRISING, IN COMBINATION, A NORMALLY NON-CONDUCTING FIRST TRANSISTOR WITH A BASE ADAPTED TO RECEIVE INPUT SIGNALS, A BIAS VOLTAGE SUPPLY CONNECTED TO THE BASE OF SAID FIRST TRANSISTOR, A POWER SUPPLY, A DISCHARGE RESISTOR CONNECTED FROM THE COLLECTOR OF SAID FIRST TRANSISTOR TO A FIRST SIDE OF SAID POWER SUPPLY, A NORMALLY CONDUCTING SECOND TRANSISTOR, A CAPACITOR CONNECTED FROM THE BASE OF SAID SECOND TRANSISTOR TO THE COLLECTOR OF SAID FIRST TRANSISTOR, A BIAS RESISTOR CONNECTED FROM THE BASE OF SAID SECOND TRANSISTOR TO THE FIRST SIDE OF SAID POWER SUPPLY, A LOAD RESISTOR CONNECTED FROM THE COLLECTOR OF SAID SECOND TRANSISTOR TO THE FIRST SIDE OF SAID POWER SUPPLY, AN EMITTER RESISTANCE COUPLING THE EMITTER OF BOTH OF SAID FIRST AND SECOND TRANSISTORS TO A SECOND SIDE OF SAID POWER SUPPLY, A NORMALLY NON-CONDUCTING DISCHARGE TRANSISTOR HAVING AN EMITTER AND A COLLECTOR CONNECTED ACROSS SAID DISCHARGE RESISTOR, AND A RESISTANCE-CAPACITANCE CIRCUIT CONNECTED FROM THE COLLECTOR OF SAID SECOND TRANSISTOR TO THE BASE OF SAID DISCHARGE TRANSISTOR AND HAVING A TIME CONSTANT LESS THAN THAT OF THE CIRCUIT FORMED BY SAID CAPACITOR AND LOAD RESISTOR.
Claim 2
Dependent Claim
189 words
A MONOSTABLE MULTIVIBRATOR CIRCUIT, COMPRISING, IN COMBINATION, A NORMALLY NON-CONDUCTING FIRST TRANSISTOR WITH A BASE ADAPTED TO RECEIVE INPUT SIGNALS, A BIAS VOLTAGE SUPPLY CONNECTED TO THE BASE OF SAID FIRST TRANSISTOR, A POWER SUPPLY, A DISCHARGE RESISTOR CONNECTED FROM THE COLLECTOR OF SAID FIRST TRANSISTOR TO A FIRST SIDE OF SAID POWER SUPPLY, A NORMALLY CONDUCTING SECOND TRANSISTOR, A CAPACITOR CONNECTED FROM THE BASE OF SAID SECOND TRANSISTOR TO THE COLLECTOR OF SAID FIRST TRANSISTOR, A BIAS RESISTOR CONNECTED FROM THE BASE OF SAID SECOND TRANSISTOR TO THE FIRST SIDE OF SAID POWER SUPPLY, A LOAD RESISTOR CONNECTED FROM THE COLLECTOR OF SAID SECOND TRANSISTOR TO THE FIRST SIDE OF SAID POWER SUPPLY, AN EMITTER RESISTANCE COUPLING THE EMITTER OF BOTH OF SAID FIRST AND SECOND TRANSISTORS TO A SECOND SIDE OF SAID POWER SUPPLY, A NORMALLY NON-CONDUCTING DISCHARGE TRANSISTOR HAVING AN EMITTER AND A COLLECTOR CONNECTED ACROSS SAID DISCHARGE RESISTOR, AND A RESISTANCE-CAPACITANCE CIRCUIT CONNECTED FROM THE COLLECTOR OF SAID SECOND TRANSISTOR TO THE BASE OF SAID DISCHARGE TRANSISTOR AND HAVING A TIME CONSTANT LESS THAN THAT OF THE CIRCUIT FORMED BY SAID CAPACITOR AND LOAD RESISTOR.
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) | 1968-05-17 | 1968-11-16 | 1969-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-17 | 1972-11-16 | 1973-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-17 | 1976-11-16 | 1977-05-18 | $7700.00 | Window Closed / Lapsed |