Patent US3080474A successfully refreshed from Google Patents.
US3080474A
Expired / Lapsed
US
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Luminous display device
Assignee: Individual
•
Filing: 1959-07-10
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Granted: 1963-03-05
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Expires: 1979-07-10
Abstract
No abstract record available.
Inventors
- 👤 Stratford B Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:55
CPC Classifications
F; F21; F21V; F21V17/00; F21V17/02; F21S; F21S10/00; F21S10/007; G; G09; G09F; G09F13/00; F21V11/00; F21V11/08; F21V9/00; F21V9/08; Y; Y10; Y10S; Y10S315/00; Y10S315/02; Y10S362/00; Y10S362/806; Y10S362/811
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
IN A DISPLAY DEVICE HAVING A ROTATING PANEL WHICH IS PROVIDED WITH AT LEAST ONE LIGHT TRANSMISSIVE AREA, AN A.C. GASEOUS LAMP ADJACENT TO SAID PANEL, A SOURCE OF A.C. POTENTIAL TO PROVIDE THE LAMP WITH OPERATING POTENTIAL AT A PREDETERMINED FREQUENCY, CONDUCTIVE MEANS CONNECTING SAID A.C. SOURCE WITH SAID GASEOUS LAMP FOR NORMAL ENERGIZATION OF THE LAMP, AND A CAPACITOR CONNECTED BETWEEN SAID SOURCE OF SAID LAMP FOR SHARPLY INCREASING THE AMPLITUDE OF EACH HALF-CYCLE OF THE A.C. LAMP OPERATING POTENTIAL TO REQUIRE LIGHT PULSES FROM THE LAMP AT A FREQUENCY WHICH IS A FUNCTION OF THE ELECTRICAL FREQUENCY OF THE A.C. LINE POTENTIAL.
Claim 2
Dependent Claim
105 words
IN A DISPLAY DEVICE HAVING A ROTATING PANEL WHICH IS PROVIDED WITH AT LEAST ONE LIGHT TRANSMISSIVE AREA, AN A.C. GASEOUS LAMP ADJACENT TO SAID PANEL, A SOURCE OF A.C. POTENTIAL TO PROVIDE THE LAMP WITH OPERATING POTENTIAL AT A PREDETERMINED FREQUENCY, CONDUCTIVE MEANS CONNECTING SAID A.C. SOURCE WITH SAID GASEOUS LAMP FOR NORMAL ENERGIZATION OF THE LAMP, AND A CAPACITOR CONNECTED BETWEEN SAID SOURCE OF SAID LAMP FOR SHARPLY INCREASING THE AMPLITUDE OF EACH HALF-CYCLE OF THE A.C. LAMP OPERATING POTENTIAL TO REQUIRE LIGHT PULSES FROM THE LAMP AT A FREQUENCY WHICH IS A FUNCTION OF THE ELECTRICAL FREQUENCY OF THE A.C. LINE POTENTIAL.
References Cited (Backward Citations)
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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) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |