US3188489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monostable multivibrator having emitter follower feedback controlled by a timing network
Assignee: RCA Corp
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Filing: 1962-03-27
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Granted: 1965-06-08
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Expires: 1982-03-27
Abstract
No abstract record available.
Inventors
- 👤 Denis P Dorsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:15
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
122 words
A CIRCUIT FOR PRODUCING A LONG DURATION PULSE HAVING SHORT RISE AND FALL TIME COMPRISING FIRST AND SECOND TRANSISTORS OF ONE CONDUCTIVITY TYPE, MEANS FOR COUPLING THE OUTPUT ELECTRODE OF SAID FIRST TRANSISTOR RESISTIVELY TO THE INPUT ELECTRODE OF SAID SECOND TRANSISTOR, MEANS FOR CLAMPING THE OUTPUT ELECTRODES OF SAID FIRST AND SECOND TRANSISTORS TO PREDETERMINED VOLTAGES, MEANS FOR CONNECTING THE OUTPUT ELECTRODE OF SAID SECOND TRANSISTOR THROUGH A SERIES CONNECTION INCLUDING A CONDENSER TO THE INPUT ELECTRODE OF A THIRD TRANSISTOR, SAID THIRD TRANSISTOR BEING OF AN OPPOSITE CONDUCITVITY TYPE TO THE FIRST AND SECOND TRANSISTORS, A VARIABLE RESISTANCE NETWORK FOR CONNECTING ANOTHER ELECTRODE OF THE THIRD TRANSISTOR TO A VOLTAGE SOURCE, MEANS FOR CONNECTING A POINT ON SAID RESISTANCE NET-
Claim 2
Dependent Claim
122 words
A CIRCUIT FOR PRODUCING A LONG DURATION PULSE HAVING SHORT RISE AND FALL TIME COMPRISING FIRST AND SECOND TRANSISTORS OF ONE CONDUCTIVITY TYPE, MEANS FOR COUPLING THE OUTPUT ELECTRODE OF SAID FIRST TRANSISTOR RESISTIVELY TO THE INPUT ELECTRODE OF SAID SECOND TRANSISTOR, MEANS FOR CLAMPING THE OUTPUT ELECTRODES OF SAID FIRST AND SECOND TRANSISTORS TO PREDETERMINED VOLTAGES, MEANS FOR CONNECTING THE OUTPUT ELECTRODE OF SAID SECOND TRANSISTOR THROUGH A SERIES CONNECTION INCLUDING A CONDENSER TO THE INPUT ELECTRODE OF A THIRD TRANSISTOR, SAID THIRD TRANSISTOR BEING OF AN OPPOSITE CONDUCITVITY TYPE TO THE FIRST AND SECOND TRANSISTORS, A VARIABLE RESISTANCE NETWORK FOR CONNECTING ANOTHER ELECTRODE OF THE THIRD TRANSISTOR TO A VOLTAGE SOURCE, MEANS FOR CONNECTING A POINT ON SAID RESISTANCE NET-
References Cited (Backward Citations)
US2882350A
Cited
US2837663A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-07 | 1968-12-07 | 1969-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-07 | 1972-12-07 | 1973-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-07 | 1976-12-07 | 1977-06-08 | $7700.00 | Window Closed / Lapsed |