US3131362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balanced transistor multivibrator
Assignee: International Business Machines Corp
•
Filing: 1960-05-31
•
Granted: 1964-04-28
•
Expires: 1980-05-31
Abstract
No abstract record available.
Inventors
- 👤 William C Dersch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:02
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/282; H03K3/2826
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
A PULSE GENERATOR COMPRISING A PAIR OF SEMI-CONDUCTOR DEVICES OF OPPOSITE CONDUCTIVITY TYPE, EACH HAVING OPERATING STATES OF CONDUCTION AND NONCONDUCTION, EACH OF SAID DEVICES HAVING CURRENT RECEIVING, CURRENT EMITTING, AND CONTROL ELECTRODES, A SOURCE OF DIRECT CURRENT HAVING POSITIVE, GROUND, AND NEGATIVE TERMINALS, MEANS FOR CONNECTING THE POSITIVE TERMINAL OF SAID SOURCE TO THE MEANS FOR CONNECTING THE NEGATIVE TERMINAL OF SAID SOURCE CURRENT RECEIVING ELECTRODE OF THE FIRST OF SAID DEVICES, TO THE CURRENT EMITTING ELECTRODE OF THE SECOND OF SAID DEVICES, THE CURRENT EMITTING ELECTRODE OF THE FIRST OF SAID DEVICES AND THE CURRENT RECEIVING ELECTRODE OF THE SECOND OF SAID DEVICES BEING CONNECTED IN COMMON TO THE GROUND TERMINAL OF SAID SOURCE, THE CONTROL ELECTRODE CIRCUITS OF SAID DEVICES BEING SELF-BIASING, FIRST CAPACITOR MEANS FOR COUPLING THE CURRENT RECEIVING ELECTRODE OF THE FIRST OF SAID DEVICES TO THE CONTROL ELECTRODE OF THE SECOND OF SAID DEVICES, AND SECOND CAPACITOR MEANS FOR COUPLING THE CURRENT EMITTING ELECTRODE OF SAID SECOND DEVICE TO THE CONTROL ELECTRODE OF SAID FIRST DEVICE.
Claim 2
Dependent Claim
172 words
A PULSE GENERATOR COMPRISING A PAIR OF SEMI-CONDUCTOR DEVICES OF OPPOSITE CONDUCTIVITY TYPE, EACH HAVING OPERATING STATES OF CONDUCTION AND NONCONDUCTION, EACH OF SAID DEVICES HAVING CURRENT RECEIVING, CURRENT EMITTING, AND CONTROL ELECTRODES, A SOURCE OF DIRECT CURRENT HAVING POSITIVE, GROUND, AND NEGATIVE TERMINALS, MEANS FOR CONNECTING THE POSITIVE TERMINAL OF SAID SOURCE TO THE MEANS FOR CONNECTING THE NEGATIVE TERMINAL OF SAID SOURCE CURRENT RECEIVING ELECTRODE OF THE FIRST OF SAID DEVICES, TO THE CURRENT EMITTING ELECTRODE OF THE SECOND OF SAID DEVICES, THE CURRENT EMITTING ELECTRODE OF THE FIRST OF SAID DEVICES AND THE CURRENT RECEIVING ELECTRODE OF THE SECOND OF SAID DEVICES BEING CONNECTED IN COMMON TO THE GROUND TERMINAL OF SAID SOURCE, THE CONTROL ELECTRODE CIRCUITS OF SAID DEVICES BEING SELF-BIASING, FIRST CAPACITOR MEANS FOR COUPLING THE CURRENT RECEIVING ELECTRODE OF THE FIRST OF SAID DEVICES TO THE CONTROL ELECTRODE OF THE SECOND OF SAID DEVICES, AND SECOND CAPACITOR MEANS FOR COUPLING THE CURRENT EMITTING ELECTRODE OF SAID SECOND DEVICE TO THE CONTROL ELECTRODE OF SAID FIRST DEVICE.
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) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |