US3267293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Character recognition circuit
Assignee: Unisys Corp
•
Filing: 1963-04-25
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Granted: 1966-08-16
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Expires: 1983-04-25
Abstract
No abstract record available.
Inventors
- 👤 Virgil A Hinds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:40
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/40; H04N1/403; G; G06; G06V; G06V30/00; G06V30/10; G06V30/16; G06V30/162
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A VIDEO AMPLIFYING CIRCUIT COMPRISING, A PLURALITY OF TRANSISTOR STAGES EACH INCLUDING A TRANSISTOR HAVING BASE, EMITTER AND COLLECTOR ELECTRODES, A FIRST TRANSISTOR STAGE FOR RECEIVING SIGNALS ON THE BASE OF THE TRANSISTOR INCLUDED IN SAID FIRST STAGE, A TRANSISTOR OUTPUT STAGE COUPLED TO THE EMITTER OF SAID TRANSISTOR OF SAID FIRST STAGE, A FIRST CONTROLLING NETWORK COUPLED BETWEEN THE EMITTER OF SAID TRANSISTOR OF SAID FIRST STAGE AND SAID TRANSISTOR OF SAID OUT-
Claim 2
Dependent Claim
74 words
A VIDEO AMPLIFYING CIRCUIT COMPRISING, A PLURALITY OF TRANSISTOR STAGES EACH INCLUDING A TRANSISTOR HAVING BASE, EMITTER AND COLLECTOR ELECTRODES, A FIRST TRANSISTOR STAGE FOR RECEIVING SIGNALS ON THE BASE OF THE TRANSISTOR INCLUDED IN SAID FIRST STAGE, A TRANSISTOR OUTPUT STAGE COUPLED TO THE EMITTER OF SAID TRANSISTOR OF SAID FIRST STAGE, A FIRST CONTROLLING NETWORK COUPLED BETWEEN THE EMITTER OF SAID TRANSISTOR OF SAID FIRST STAGE AND SAID TRANSISTOR OF SAID OUT-
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) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |