Patent US4323492A successfully refreshed from Google Patents.
US3356898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Xy glow lamp display with switch from igniting to holding voltage
Assignee: Individual
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Filing: 1964-11-19
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Granted: 1967-12-05
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Expires: 1984-11-19
Abstract
No abstract record available.
Inventors
- 👤 Paul K Dano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:08
CPC Classifications
G; G09; G09G; G09G3/00; G09G3/20; G09G3/22; G09G3/28; G09G3/282; H; H03; H03K; H03K17/00; H03K17/18; H04; H04N; H04N3/00; H04N3/10; H04N3/12; G09G2310/00; G09G2310/02; G09G2310/0264; G09G2310/0267; G09G2310/0275; G09G2330/00; G09G2330/02; G09G2330/021
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
221 words
A DISPLAY SYSTEM COMPRISING; A TWO-DIMENSIONAL ARRAY OF GLOW LAMPS ORDERLY ARRAYED IN PARALLEL ROWS AND COLUMNS, EACH LAMP HAVING A FIRST AND A SECOND TERMINAL, HAVING A PREDETERMINED IGNITION VOLTAGE 2V, BETWEEN SAID TERMINALS, AND HAVING A LOWER HOLD VOLTAGE, A VOLTAGE SOURCE WITH ONE TERMINAL OF POSITIVE VOLTAGE, +V, AND A SECOND TERMINAL OF NEGATIVE VOLTAGE, -V A FIRST GROUP OF BUS BARS, EACH BAR OF SAID FIRST GROUP BEING CONNECTED WITH SAID FIRST TERMINAL OF EACH OF THE GLOW LAMPS IN ONE ROW OF SAID ARRAY OF LAMPS, A SECOND GROUP OF BUS BARS, EACH BAR OF SAID SECOND GROUP BEING CONNECTED WITH SAID SECOND TERMINAL OF EACH OF THE GLOW LAMPS IN ONE COLUMN OF SAID ARRAY OF LAMPS, ONE GROUP OF SWITCHES CONNECTED BETWEEN ONE TERMINAL OF SAID SOURCE AND, RESPECTIVELY, EACH OF THE BUS BARS OF SAID FIRST GROUP, A SECOND GROUP OF SWITCHES CONNECTED BETWEEN THE OTHER TERMINAL OF SAID SOURCE AND, RESPECTIVELY, EACH OF THE BUS BARS OF SAID SECOND GROUP, MEANS FOR SIMULTANEOUSLY CLOSING THE CIRCUITS OF ANY TWO SWITCHES IN DIFFERENT SWITCH GROUPS TO APPLY SAID 2V IGNITION VOLTAGE TO A SELECTED ONE OF SAID LAMPS, AND A CONSTANT VOLTAGE DEVICE CONNECTED ACROSS THE SWITCHES OF ONE GROUP FOR ESTABLISHING SAID LOWER HOLD VOLTAGE WHEN THE ASSOCIATED SWITCH IS OPEN CIRCUITED.
Claim 2
Dependent Claim
221 words
A DISPLAY SYSTEM COMPRISING; A TWO-DIMENSIONAL ARRAY OF GLOW LAMPS ORDERLY ARRAYED IN PARALLEL ROWS AND COLUMNS, EACH LAMP HAVING A FIRST AND A SECOND TERMINAL, HAVING A PREDETERMINED IGNITION VOLTAGE 2V, BETWEEN SAID TERMINALS, AND HAVING A LOWER HOLD VOLTAGE, A VOLTAGE SOURCE WITH ONE TERMINAL OF POSITIVE VOLTAGE, +V, AND A SECOND TERMINAL OF NEGATIVE VOLTAGE, -V A FIRST GROUP OF BUS BARS, EACH BAR OF SAID FIRST GROUP BEING CONNECTED WITH SAID FIRST TERMINAL OF EACH OF THE GLOW LAMPS IN ONE ROW OF SAID ARRAY OF LAMPS, A SECOND GROUP OF BUS BARS, EACH BAR OF SAID SECOND GROUP BEING CONNECTED WITH SAID SECOND TERMINAL OF EACH OF THE GLOW LAMPS IN ONE COLUMN OF SAID ARRAY OF LAMPS, ONE GROUP OF SWITCHES CONNECTED BETWEEN ONE TERMINAL OF SAID SOURCE AND, RESPECTIVELY, EACH OF THE BUS BARS OF SAID FIRST GROUP, A SECOND GROUP OF SWITCHES CONNECTED BETWEEN THE OTHER TERMINAL OF SAID SOURCE AND, RESPECTIVELY, EACH OF THE BUS BARS OF SAID SECOND GROUP, MEANS FOR SIMULTANEOUSLY CLOSING THE CIRCUITS OF ANY TWO SWITCHES IN DIFFERENT SWITCH GROUPS TO APPLY SAID 2V IGNITION VOLTAGE TO A SELECTED ONE OF SAID LAMPS, AND A CONSTANT VOLTAGE DEVICE CONNECTED ACROSS THE SWITCHES OF ONE GROUP FOR ESTABLISHING SAID LOWER HOLD VOLTAGE WHEN THE ASSOCIATED SWITCH IS OPEN CIRCUITED.
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) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |