US3071700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sequential pulse transfer circuit
Assignee: AT&T Inc
•
Filing: 1959-04-24
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Granted: 1963-01-01
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Expires: 1979-04-24
Abstract
No abstract record available.
Inventors
- 👤 Larrabee M Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:53
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; G; G11; G11C; G11C19/00; G11C19/28; H03K3/28; H03K3/281; H03K3/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
IN A SHIFT REGISTER, INCLUDING FIRST AND SECOND BISTABLE TRIGGER CIRCUITS, NONCAPACITIVE PULSE TRANSFER MEANS COMPRISING A TRANSFORMER HAVING A PRIMARY WINDING AND A SECONDARY WINDING, SAID PRIMARY WINDING BEING CONNECTED TO THE OUTPUT OF SAID FIRST BISTABLE TRIGGER CIRCUIT AND SAID SECONDARY WINDING BEING CONNECTED THROUGH UNIDIRECTIONAL CONDUCTING MEANS TO THE INPUT OF SAID SECOND BISTABLE TRIGGER CIRCUIT, SWITCHING MEANS FOR APPLYING CUTOFF PULSES TO SAID FIRST AND SECOND BISTABLE TRIGGER CIRCUITS, MEANS CONNECTED TO SAID PRIMARY WINDING TO SUSTAIN CURRENT FLOW THERETHROUGH WHEN SAID FIRST BISTABLE TRIGGER CIRCUIT IS CUT OFF BY SAID CUT-OFF PULSES, AND MEANS FOR DISABLING SAID CURRENT SUSTAINING MEANS FOLLOWING EACH OF SAID CUT-OFF PULSES AND BEFORE CURRENT CEASES TO FLOW IN SAID PRIMARY WINDING.
Claim 2
Dependent Claim
121 words
IN A SHIFT REGISTER, INCLUDING FIRST AND SECOND BISTABLE TRIGGER CIRCUITS, NONCAPACITIVE PULSE TRANSFER MEANS COMPRISING A TRANSFORMER HAVING A PRIMARY WINDING AND A SECONDARY WINDING, SAID PRIMARY WINDING BEING CONNECTED TO THE OUTPUT OF SAID FIRST BISTABLE TRIGGER CIRCUIT AND SAID SECONDARY WINDING BEING CONNECTED THROUGH UNIDIRECTIONAL CONDUCTING MEANS TO THE INPUT OF SAID SECOND BISTABLE TRIGGER CIRCUIT, SWITCHING MEANS FOR APPLYING CUTOFF PULSES TO SAID FIRST AND SECOND BISTABLE TRIGGER CIRCUITS, MEANS CONNECTED TO SAID PRIMARY WINDING TO SUSTAIN CURRENT FLOW THERETHROUGH WHEN SAID FIRST BISTABLE TRIGGER CIRCUIT IS CUT OFF BY SAID CUT-OFF PULSES, AND MEANS FOR DISABLING SAID CURRENT SUSTAINING MEANS FOLLOWING EACH OF SAID CUT-OFF PULSES AND BEFORE CURRENT CEASES TO FLOW IN SAID PRIMARY WINDING.
References Cited (Backward Citations)
US2594336A
Cited
US2782344A
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US2848628A
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US2820153A
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US2910596A
Cited
US2873385A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |