US3210568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Directly coupled unbalanced tunnel diode pairs for logic circuits
Assignee: GTE Sylvania Inc
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Filing: 1962-05-01
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Granted: 1965-10-05
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Expires: 1982-05-01
Abstract
No abstract record available.
Inventors
- 👤 Wallace J Dunnet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:09
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/02; H03K19/08; H03K19/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A MULTISTAGE, DIRECTLY CASCADED, UNBALANCED LOCKED PAIR TUNNEL DIODE LOGIC CIRCUIT COMPRISING, IN COMBINATION, A PLURALITY OF TUNNEL DIODE LOCKED PAIRS EACH INCLUDING FIRST AND SECOND TUNNEL DIODES WHICH SWITCH AT DIFFERENT CURRENT VALUES, EACH ALTERNATE LOCKED PAIR BEING THE DUAL OF THE ADJACENT LOCKED PAIR, A POLYPHASE POWER SOURCE CONNECTED TO SAID PLURALITY OF LOCKED PAIRS AND OPERATIVE TO SEQUNTIALLY ENERGIZE EACH LOCKED PAIR, AN INPUT CIRCUIT CONNECTED TO THE FIRST STAGE OF SAID LOGIC CIRCUIT AND OPERATIVE TO COUPLE INPUT PULSES THERETO, AND AN OUTPUT CIRCUIT CONNECTED TO THE LAST STAGE OF SAID LOGIC CIRCUIT FOR TRANSFERRING OUTPUT PULSES THEREFROM.
Claim 2
Dependent Claim
102 words
A MULTISTAGE, DIRECTLY CASCADED, UNBALANCED LOCKED PAIR TUNNEL DIODE LOGIC CIRCUIT COMPRISING, IN COMBINATION, A PLURALITY OF TUNNEL DIODE LOCKED PAIRS EACH INCLUDING FIRST AND SECOND TUNNEL DIODES WHICH SWITCH AT DIFFERENT CURRENT VALUES, EACH ALTERNATE LOCKED PAIR BEING THE DUAL OF THE ADJACENT LOCKED PAIR, A POLYPHASE POWER SOURCE CONNECTED TO SAID PLURALITY OF LOCKED PAIRS AND OPERATIVE TO SEQUNTIALLY ENERGIZE EACH LOCKED PAIR, AN INPUT CIRCUIT CONNECTED TO THE FIRST STAGE OF SAID LOGIC CIRCUIT AND OPERATIVE TO COUPLE INPUT PULSES THERETO, AND AN OUTPUT CIRCUIT CONNECTED TO THE LAST STAGE OF SAID LOGIC CIRCUIT FOR TRANSFERRING OUTPUT PULSES THEREFROM.
References Cited (Backward Citations)
US3120653A
Cited
US3054911A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |