Patent US2996268A successfully refreshed from Google Patents.
US3286102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric circuits
Assignee: ENGLISH ELECTRIC LEO COMPUTERS
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Filing: 1963-12-19
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Granted: 1966-11-15
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Expires: 1983-12-19
Abstract
No abstract record available.
Inventors
- 👤 Salam Hassan Paddy Abdel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:00
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/02; H03K19/08; H03K19/10; G; G11; G11C; G11C11/00; G11C11/21; G11C11/34; G11C11/36; G11C11/38; H03K19/082; H03K3/00; H03K3/02; H03K3/313; H03K3/315
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
AN ELECTRIC DIGITAL TRANSFER AND STORAGE DEVICE COMPRISING A PLURALITY OF SEPARATE INPUT CIRCUITS, A PULSE TRANSFORMER HAVING A PLURALITY OF SIMILAR INPUT WINDINGS AND AN OUTPUT WINDING, A TRANSISTOR HAVING SAID OUTPUT WINDING CONNECTED IN THE BASE-EMITTER CIRCUIT THEREOF, A TUNNEL DIODE CONNECTED IN THE EMITTER-COLLECTOR CIRCUIT OF SAID TRANSISTOR, AND A BIASING CIRCUIT FOR CAUSING A BIAS CURRENT TO FLOW IN THE TUNNEL DIODE HAVING A MAGNITUDE SUCH THAT THE TUNNEL DIODE MAY OPERATE AT EITHER OF TWO ALTERNATIVE STABLE STATES, EACH INPUT CIRCUIT COMPRISING ONE OF A PLURALITY OF FIRST INPUT TERMINALS FOR RECEVING INPUT POTENTIALS FROM A PLURALITY OF SECOND INPUT SIGNAL SOURCES, ONE OF PLURALITY OF SECOND INPUT INTERMINALS FOR RECEIVING CONTROL POTENTIAL PULSES FROM A CONTROL POTENTIAL SOURCE, AND ONE OF SAID INPUT WINDINGS AND A UNIDIRECTIONAL CURRENT CONDUCTION DEVICE CONNECTED IN SERIES BETWEEN SAID FIRST AND SECOND INPUT TERMINALS SUCH THAT AN OUTPUT SIGNAL REPRESENTING A PERDETERMINED BINARY STATE IS INDUCED IN THE TRANSFORMER OUTPUT WINDING ON APPLICATION OF A CONTROL POTENTIAL PULSE TO ANY SELECTED SECOND INPUT TERMINAL ONLY
Claim 2
Dependent Claim
177 words
AN ELECTRIC DIGITAL TRANSFER AND STORAGE DEVICE COMPRISING A PLURALITY OF SEPARATE INPUT CIRCUITS, A PULSE TRANSFORMER HAVING A PLURALITY OF SIMILAR INPUT WINDINGS AND AN OUTPUT WINDING, A TRANSISTOR HAVING SAID OUTPUT WINDING CONNECTED IN THE BASE-EMITTER CIRCUIT THEREOF, A TUNNEL DIODE CONNECTED IN THE EMITTER-COLLECTOR CIRCUIT OF SAID TRANSISTOR, AND A BIASING CIRCUIT FOR CAUSING A BIAS CURRENT TO FLOW IN THE TUNNEL DIODE HAVING A MAGNITUDE SUCH THAT THE TUNNEL DIODE MAY OPERATE AT EITHER OF TWO ALTERNATIVE STABLE STATES, EACH INPUT CIRCUIT COMPRISING ONE OF A PLURALITY OF FIRST INPUT TERMINALS FOR RECEVING INPUT POTENTIALS FROM A PLURALITY OF SECOND INPUT SIGNAL SOURCES, ONE OF PLURALITY OF SECOND INPUT INTERMINALS FOR RECEIVING CONTROL POTENTIAL PULSES FROM A CONTROL POTENTIAL SOURCE, AND ONE OF SAID INPUT WINDINGS AND A UNIDIRECTIONAL CURRENT CONDUCTION DEVICE CONNECTED IN SERIES BETWEEN SAID FIRST AND SECOND INPUT TERMINALS SUCH THAT AN OUTPUT SIGNAL REPRESENTING A PERDETERMINED BINARY STATE IS INDUCED IN THE TRANSFORMER OUTPUT WINDING ON APPLICATION OF A CONTROL POTENTIAL PULSE TO ANY SELECTED SECOND INPUT TERMINAL ONLY
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |