Patent US3218478A successfully refreshed from Google Patents.
US3218478A
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Signal responsive apparatus
Assignee: Unisys Corp
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Filing: 1963-02-28
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Granted: 1965-11-16
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Expires: 1983-02-28
Abstract
No abstract record available.
Inventors
- 👤 Bernfeld Sylvan
- 👤 John F Bruder
- 👤 Mauritz L Granberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:31
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/01; H03K5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
SIGNAL RESPONSIVE APPARATUS COMPRISING: GATING MEANS, OUTPUT MEANS INCLUDING A TRANSISTOR HAVING BASE, EMITTER AND COLLECTOR ELECTRODES, INPUT MEANS INCLUDING A TRANSFORMER MEANS HAVING AN INPUT WINDING AND AN OUTPUT WINDING AND FIRST AND SECOND SIMILAR TYPE TRANSISTORS EACH HAVING BASE, EMITTER AND COLLECTOR ELECTRODES, A PLURALITY OF AMPLYFYING MEANS EACH COUPLING A SEPARATE AND MUTUALLY EXCLUSIVE OUTPUT PULSE TO SAID INPUT MEANS TRANSFORMER MEANS INPUT WINDING, THE BASE ELECTRODE OF SAID FIRST TRANSISTOR DIRECTLY COUPLED
Claim 2
Dependent Claim
76 words
SIGNAL RESPONSIVE APPARATUS COMPRISING: GATING MEANS, OUTPUT MEANS INCLUDING A TRANSISTOR HAVING BASE, EMITTER AND COLLECTOR ELECTRODES, INPUT MEANS INCLUDING A TRANSFORMER MEANS HAVING AN INPUT WINDING AND AN OUTPUT WINDING AND FIRST AND SECOND SIMILAR TYPE TRANSISTORS EACH HAVING BASE, EMITTER AND COLLECTOR ELECTRODES, A PLURALITY OF AMPLYFYING MEANS EACH COUPLING A SEPARATE AND MUTUALLY EXCLUSIVE OUTPUT PULSE TO SAID INPUT MEANS TRANSFORMER MEANS INPUT WINDING, THE BASE ELECTRODE OF SAID FIRST TRANSISTOR DIRECTLY COUPLED
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) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |