US3118073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-saturating inverter for logic circuits
Assignee: International Business Machines Corp
•
Filing: 1961-10-05
•
Granted: 1964-01-14
•
Expires: 1981-10-05
Abstract
No abstract record available.
Inventors
- 👤 James L Walsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:22
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/02; H03K19/08; H03K19/082; H03K19/086
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A NON-SATURATING INVERTER COMPRISING: A TRANSISTOR HAVING AN INPUT AND FIRST OUTPUT CIRCUITS NORMALLY OPERATING IN A SATURATED CONDITION; A LOAD IMPEDANCE HAVING CONTROLLABLE CURRENT REQUIREMENTS CONNECTED IN THE FIRST OUTPUT CIRCUIT OF THE TRANSISTOR; A SECOND OUTPUT CIRCUIT CONNECTED TO THE LOAD IMPEDANCE; AND MEANS FOR VARYING THE LOAD IMPEDANCE CURRENT REQUIREMENTS CONNECTED TO THE LOAD IMPEDANCE, SAID CURRENT VARYING MEANS ADAPTED TO DRIVE THE TRANSISTOR FROM A SATURATED CONDITION TO A NON-SATURATED CONDITION TO PROVIDE A CONTROLLED CURRENT IN THE OUTPUT CIRCUIT, SAID CONTROLLED CURRENT BEING INDEPENDENT OF THE CURRENT VARYING MEANS OF THE LOAD IMPEDANCE.
Claim 2
Dependent Claim
98 words
A NON-SATURATING INVERTER COMPRISING: A TRANSISTOR HAVING AN INPUT AND FIRST OUTPUT CIRCUITS NORMALLY OPERATING IN A SATURATED CONDITION; A LOAD IMPEDANCE HAVING CONTROLLABLE CURRENT REQUIREMENTS CONNECTED IN THE FIRST OUTPUT CIRCUIT OF THE TRANSISTOR; A SECOND OUTPUT CIRCUIT CONNECTED TO THE LOAD IMPEDANCE; AND MEANS FOR VARYING THE LOAD IMPEDANCE CURRENT REQUIREMENTS CONNECTED TO THE LOAD IMPEDANCE, SAID CURRENT VARYING MEANS ADAPTED TO DRIVE THE TRANSISTOR FROM A SATURATED CONDITION TO A NON-SATURATED CONDITION TO PROVIDE A CONTROLLED CURRENT IN THE OUTPUT CIRCUIT, SAID CONTROLLED CURRENT BEING INDEPENDENT OF THE CURRENT VARYING MEANS OF THE LOAD IMPEDANCE.
References Cited (Backward Citations)
US2964652A
Cited
US2983831A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-13 | 1967-07-15 | 1968-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-13 | 1971-07-15 | 1972-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-13 | 1975-07-15 | 1976-01-14 | $7700.00 | Window Closed / Lapsed |