Patent US3248725A successfully refreshed from Google Patents.
US3248725A
Expired / Lapsed
US
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Apparatus for displaying characters as a sequence of linear visible traces
Assignee: International Business Machines Corp
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Filing: 1961-02-21
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Granted: 1966-04-26
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Expires: 1981-02-21
Abstract
No abstract record available.
Inventors
- 👤 Paul R Low
- 👤 Edward J Skiko
- 👤 Donald F Chargois
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:56
CPC Classifications
G; G09; G09G; G09G1/00; G09G1/06; G09G1/08; G09G1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
APPARATUS FOR REPRESENTING INFORMATION AS A SERIES OF CHARACTERS, EACH CHARACTER BEING FORMED OF A SEQUENCE OF VISIBLE TRACES, COMPRISING: MEANS REPRESENTING THE INFORMATION AS A SERIES OF CHARACTER SIGNALS; A READ-ONLY MATRIX COUPLED TO SAID REPRESENTING MEANS AND COMPRISING A PLURALITY OF GROUPS OF GATING ELEMENTS, EACH GROUP RESPONSIVE TO A PARTICULAR CHARACTER SIGNAL TO BE PRIMED THEREBY; MEANS FOR SEQUENTIALLY ENERGIZING EACH OF THE GATING ELEMENTS IN A PRIMED GROUP; HORIZONTAL AND VERTICAL FUNCTION GENERATORS EACH COMPRISING MEANS FOR GENERATING A LINEARLY INCREASING FUNCTION AND A PAIR OF MEANS FOR MODIFYING SAID FUNCTION TO DECREASING AND CONSTANT MAGNITUDE VOLTAGE FUNCTIONS; MEANS SELECTIVELY COUPLING SAID FUNCTION MODIFYING MEANS IN EACH OF SAID HORIZONTAL AND VERTICAL FUNCTION GENERATORS TO SAID GATING ELEMENTS FOR SELECTING THE VERTICAL AND HORIZONTAL LINEAR FUNCTIONS TO BE SEQUENTIALLY PAIRED; AND MEANS COUPLED TO SAID FUNCTION GENERATORS FOR CONVERTING THE SEQUENTIAL PAIRED VOLTAGE FUNCTIONS TO SEQUENTTIAL TRACES SYNTHESIZING THE CHARACTER.
Claim 2
Dependent Claim
154 words
APPARATUS FOR REPRESENTING INFORMATION AS A SERIES OF CHARACTERS, EACH CHARACTER BEING FORMED OF A SEQUENCE OF VISIBLE TRACES, COMPRISING: MEANS REPRESENTING THE INFORMATION AS A SERIES OF CHARACTER SIGNALS; A READ-ONLY MATRIX COUPLED TO SAID REPRESENTING MEANS AND COMPRISING A PLURALITY OF GROUPS OF GATING ELEMENTS, EACH GROUP RESPONSIVE TO A PARTICULAR CHARACTER SIGNAL TO BE PRIMED THEREBY; MEANS FOR SEQUENTIALLY ENERGIZING EACH OF THE GATING ELEMENTS IN A PRIMED GROUP; HORIZONTAL AND VERTICAL FUNCTION GENERATORS EACH COMPRISING MEANS FOR GENERATING A LINEARLY INCREASING FUNCTION AND A PAIR OF MEANS FOR MODIFYING SAID FUNCTION TO DECREASING AND CONSTANT MAGNITUDE VOLTAGE FUNCTIONS; MEANS SELECTIVELY COUPLING SAID FUNCTION MODIFYING MEANS IN EACH OF SAID HORIZONTAL AND VERTICAL FUNCTION GENERATORS TO SAID GATING ELEMENTS FOR SELECTING THE VERTICAL AND HORIZONTAL LINEAR FUNCTIONS TO BE SEQUENTIALLY PAIRED; AND MEANS COUPLED TO SAID FUNCTION GENERATORS FOR CONVERTING THE SEQUENTIAL PAIRED VOLTAGE FUNCTIONS TO SEQUENTTIAL TRACES SYNTHESIZING THE CHARACTER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |