Patent US3437831A successfully refreshed from Google Patents.
US3437831A
Expired / Lapsed
US
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Logic circuit
Assignee: Motorola Solutions Inc
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Filing: 1966-03-21
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Granted: 1969-04-08
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Expires: 1986-03-21
Abstract
No abstract record available.
Inventors
- 👤 Walter C Seelbach
- 👤 Frederick J Kirkpatrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:05
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/02; H03K19/08; H03K19/082
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A LOGIC GATE INCLUDING IN COMBINATION: (A) AN OUTPUT INVERTER HAVING INPUT, OUTPUT AND CONTROL ELECTRODES, (B) BIASING CIRCUIT MEANS CONNECTED TO SAID INVERTER, (C) A PLURALITY OF PARALLEL CONNECTED GATING MEANS, EACH CONNECTABLE TO A SOURCE OF BINARY LOGIC SWITCHING SIGNALS AND CONNECTED TO SAID BIASING CIRCUIT FOR CHANGING THE CONDUCTIVE STATE OF SAID INVERTER, AND, (D) INVERTER TURN-OFF CONTROL CIRCUITS MEANS INCLUDING IMPEDANCE MEANS CONNECTED TO SAID PLURALITY OF PARALLEL CONNECTED GATING MEANS AND CONDUCTIVELY CONNECTED TO SAID INVERTER ONLY WHEN SAID INVERTER IS DRIVEN NON-CONDUCTING AND DURING ITS NON-CONDUCTING STATE WHEREBY SAID IMPEDANCE MEANS IS CONDUCTIVELY DISCONNECTED DURING THE TIME IN WHICH SAID INVERTER IS DRIVEN INTO CONDUCTION AND DURING THE CONDUCTIVE STATE THEREOF.
Claim 2
Dependent Claim
117 words
A LOGIC GATE INCLUDING IN COMBINATION: (A) AN OUTPUT INVERTER HAVING INPUT, OUTPUT AND CONTROL ELECTRODES, (B) BIASING CIRCUIT MEANS CONNECTED TO SAID INVERTER, (C) A PLURALITY OF PARALLEL CONNECTED GATING MEANS, EACH CONNECTABLE TO A SOURCE OF BINARY LOGIC SWITCHING SIGNALS AND CONNECTED TO SAID BIASING CIRCUIT FOR CHANGING THE CONDUCTIVE STATE OF SAID INVERTER, AND, (D) INVERTER TURN-OFF CONTROL CIRCUITS MEANS INCLUDING IMPEDANCE MEANS CONNECTED TO SAID PLURALITY OF PARALLEL CONNECTED GATING MEANS AND CONDUCTIVELY CONNECTED TO SAID INVERTER ONLY WHEN SAID INVERTER IS DRIVEN NON-CONDUCTING AND DURING ITS NON-CONDUCTING STATE WHEREBY SAID IMPEDANCE MEANS IS CONDUCTIVELY DISCONNECTED DURING THE TIME IN WHICH SAID INVERTER IS DRIVEN INTO CONDUCTION AND DURING THE CONDUCTIVE STATE THEREOF.
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) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |