US3171971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amplitude bistable circuits
Assignee: International Business Machines Corp
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Filing: 1960-11-30
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Granted: 1965-03-02
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Expires: 1980-11-30
Abstract
No abstract record available.
Inventors
- 👤 Charles L Heizman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:07
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/45; H03K3/47
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A CIRCUIT HAVING A FIRST AND A SECOND STABLE STATE COMPRISING A NON-LINEAR REACTANCE AND A NON-LINEAR RESISTANCE COUPLED IN PARALLEL WITH SAID NON-LINEAR REACTANCE, A LINEAR REACTANCE CONNECTED IN SERIES WITH SAID NON-LINEAR REACTANCE, A SOURCE OF CARRIER WAVES, A HIGH PASS FILTER COUPLING SAID SOURCE TO SAID LINEAR REACTANCE, A RESISTOR, A LOW PASS FILTER COUPLING SAID RESISTOR TO SAID NON-LINEAR REACTANCE AND NON-LINEAR RESISTANCE, A SOURCE OF DIRECT CURRENT VOLTAGE COUPLED TO SAID NON-LINEAR REACTANCE AND NON-LINEAR RESISTANCE THROUGH SAID RESISTOR AND SAID LOW PASS FILTER, AND MEANS FOR APPLYING A SIGNAL TO SAID NON-LINEAR REACTANCE AND SAID NON-LINEAR RESISTANCE TO SWITCH THE CIRCUIT FROM ONE OF SAID FIRST AND SECOND STABLE STATES TO THE OTHER OF SAID STABLE STATES.
Claim 2
Dependent Claim
123 words
A CIRCUIT HAVING A FIRST AND A SECOND STABLE STATE COMPRISING A NON-LINEAR REACTANCE AND A NON-LINEAR RESISTANCE COUPLED IN PARALLEL WITH SAID NON-LINEAR REACTANCE, A LINEAR REACTANCE CONNECTED IN SERIES WITH SAID NON-LINEAR REACTANCE, A SOURCE OF CARRIER WAVES, A HIGH PASS FILTER COUPLING SAID SOURCE TO SAID LINEAR REACTANCE, A RESISTOR, A LOW PASS FILTER COUPLING SAID RESISTOR TO SAID NON-LINEAR REACTANCE AND NON-LINEAR RESISTANCE, A SOURCE OF DIRECT CURRENT VOLTAGE COUPLED TO SAID NON-LINEAR REACTANCE AND NON-LINEAR RESISTANCE THROUGH SAID RESISTOR AND SAID LOW PASS FILTER, AND MEANS FOR APPLYING A SIGNAL TO SAID NON-LINEAR REACTANCE AND SAID NON-LINEAR RESISTANCE TO SWITCH THE CIRCUIT FROM ONE OF SAID FIRST AND SECOND STABLE STATES TO THE OTHER OF SAID STABLE STATES.
References Cited (Backward Citations)
US2992398A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |