US3098173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switching circuit for use with electroluminescent display devices
Assignee: GTE Sylvania Inc
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Filing: 1960-01-25
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Granted: 1963-07-16
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Expires: 1980-01-25
Abstract
No abstract record available.
Inventors
- 👤 Donald C Livingston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:17
CPC Classifications
G; G09; G09G; G09G3/00; G09G3/20; G09G3/22; G09G3/30; H; H03; H03K; H03K17/00; H03K17/51; H03K17/80; H03K17/81; H04; H04N; H04N3/00; H04N3/10; H04N3/14; H05; H05B; H05B44/00; G09G2310/00; G09G2310/02; G09G2310/0264; G09G2310/0267; G09G2310/0275; Y; Y02; Y02B; Y02B20/00; Y02B20/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
AN ELECTROLUMINESCENT DEVICE COMPRISING FIRST AND SECOND SPACED ARRAYS OF ELECTRICAL ONDUCTORS, THE CONDUCTORS IN SAID FIRST ARRAY PASSING OVER THE CONDUCTORS IN SAID SECOND ARRAY TO FORM A PLURALITY OF CROSSOVER POINTS, A PLURALITY OF ELECTROLUMINESCENT CELLS LOCATED BETWEEN SAID CONDUCTORS AT SAID CROSSOVER POINTS, AND A PLURALITY OF SINGLE-APERTURED RING-SHAPED MAGNETIC CORES EACH HAVING AN OUTPUT WINDING, AN INPUT WINDING,AND AT LEAST ONE CONTROL WINDING, ONE END OF THE OUTPUT WINDING ON EACH OF SAID MAGNETIC CORES BEING CONNECTED TO A CORRESPONDING ONE OF SAID ELECTRICAL CONDUCTORS, THE OTHER ENDS OF SAID OUTPUT WINDINGS BEING CONNECTED TO A COMMON JUNCTION, BEAM SWITCHING TUBE MEANS COUPLET TO EACH OF SAID CONTROL WINDINGS, SAID BEAM SWITCHING TUBE MEANS COUPLING A DIRECT VOLTAGE TO SELECTED CONTROL WINDINGS IN RESPONSE TO AN APPLIED SIGNAL.
Claim 2
Dependent Claim
132 words
AN ELECTROLUMINESCENT DEVICE COMPRISING FIRST AND SECOND SPACED ARRAYS OF ELECTRICAL ONDUCTORS, THE CONDUCTORS IN SAID FIRST ARRAY PASSING OVER THE CONDUCTORS IN SAID SECOND ARRAY TO FORM A PLURALITY OF CROSSOVER POINTS, A PLURALITY OF ELECTROLUMINESCENT CELLS LOCATED BETWEEN SAID CONDUCTORS AT SAID CROSSOVER POINTS, AND A PLURALITY OF SINGLE-APERTURED RING-SHAPED MAGNETIC CORES EACH HAVING AN OUTPUT WINDING, AN INPUT WINDING,AND AT LEAST ONE CONTROL WINDING, ONE END OF THE OUTPUT WINDING ON EACH OF SAID MAGNETIC CORES BEING CONNECTED TO A CORRESPONDING ONE OF SAID ELECTRICAL CONDUCTORS, THE OTHER ENDS OF SAID OUTPUT WINDINGS BEING CONNECTED TO A COMMON JUNCTION, BEAM SWITCHING TUBE MEANS COUPLET TO EACH OF SAID CONTROL WINDINGS, SAID BEAM SWITCHING TUBE MEANS COUPLING A DIRECT VOLTAGE TO SELECTED CONTROL WINDINGS IN RESPONSE TO AN APPLIED SIGNAL.
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) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |