US3238389A
Expired / Lapsed
US
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Signal responsive apparatus
Assignee: Unisys Corp
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Filing: 1962-12-17
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Granted: 1966-03-01
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Expires: 1982-12-17
Abstract
No abstract record available.
Inventors
- 👤 Donald E Marpe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:50
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/02; H03K19/08; H03K19/082; H03K19/084; G; G06; G06F; G06F11/00; G06F11/07; G06F11/08; G06F11/085; G11; G11B; G11B15/00; G11B15/005
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
118 words
SIGNAL RESPONSIVE APPARATUS, COMPRISING: A FIRST VOLTAGE LEVEL SOURCE; A SECOND VOLTAGE LEVEL SOURCE; A DETECTOR CIRCUIT HAVING AT LEAST FIRST AND SECOND PARALLEL ARRANGED CONTROL CIRCUITS COMMON COUPLED BETWEEN AT LEAST TWO INPUT TERMINALS AND AT LEAST ONE OUTPUT TERMINAL; EACH OF SAID CONTROL CIRCUITS HAVING A BIASING MEANS AND AT LEAST TWO SERIALLY ARRANGED TRANSISTOR MEANS; SAID FIRST AND SECOND CONTROL CIRCUIT BIASING MEANS BIASING THEIR RESPECTIVE SERIALLY ARRANGED TRANSISTOR MEANS INTO THE NON-CONDUCTIVE MODE CAUSING A FIRST OUTPUT SIGNAL LEVEL TO APPEAR AT SAID OUTPUT TERMINAL ONLY WHEN SAID FIRST VOLTAGE LEVEL SOURCE IS COUPLED TO ONLY ONE OF SAID INPUT TERMINALS ANS SAID SECOND VOLTAGE LEVEL SOURCE IS COUPLED TO THE REMAINING INPUT TERMINALS.
References Cited (Backward Citations)
US2850647A
Cited
US3094632A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |