US3265877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illuminating system
Assignee: General Electric Co
•
Filing: 1965-07-26
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Granted: 1966-08-09
•
Expires: 1985-07-26
Abstract
No abstract record available.
Inventors
- 👤 Howell Edward Keith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:54
CPC Classifications
F; F21; F21K; F21K2/00; B; B64; B64F; B64F1/00; B64F1/18; B64F1/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
AN ILLUMINATING SYSTEM CONMPRISING, IN COMBINATION, A RESERVOIR OF A LIQUID SUSPENSION OF PHOSPHORESCENT MATERAIL WHICH EXHIBITS A LENGTHY AFTER-GLOW EMISSION, CONDUIT MEANS LEADING FROM SAID RESERVOIR TO AN AREA TO BE ILLUMINATED AND RETURNING TO SAID RESERVOIR, SAID CONDUIT MEANS BEING TRANSPARENT IN THE REGION OF SAID AREA AND IN PORTION ENTIRELY REMOTE FROM SAID AREA, EXCITATION MEANS ARRANGED ADJACENT SAID REMOTE TRANSPARENT PORTION OF SAID CONDUIT MEANS FOR EXCITING THE LIQUID SUSPENSION TO RENDER IT LUMINOUS, AND PUMP MEANS FOR MOVING SAID PHOSPHORESCENT LIQUID SUSPENSION THROUGH SAID CONDUIT MEANS, WHEREBY THE LIQUID SUSPENSION RENDERED LUMINOUS BY SAID EXCITATION MEANS AT SAID REMOTE TRANSPARENT PORTION ILLUMINATES THE AREA TO BE LIGHTED WHEN PASSING THROUGH THE TRANSPARENT CONDUIT PORTION IN THE REGION OF SAID AREA.
Claim 2
Dependent Claim
125 words
AN ILLUMINATING SYSTEM CONMPRISING, IN COMBINATION, A RESERVOIR OF A LIQUID SUSPENSION OF PHOSPHORESCENT MATERAIL WHICH EXHIBITS A LENGTHY AFTER-GLOW EMISSION, CONDUIT MEANS LEADING FROM SAID RESERVOIR TO AN AREA TO BE ILLUMINATED AND RETURNING TO SAID RESERVOIR, SAID CONDUIT MEANS BEING TRANSPARENT IN THE REGION OF SAID AREA AND IN PORTION ENTIRELY REMOTE FROM SAID AREA, EXCITATION MEANS ARRANGED ADJACENT SAID REMOTE TRANSPARENT PORTION OF SAID CONDUIT MEANS FOR EXCITING THE LIQUID SUSPENSION TO RENDER IT LUMINOUS, AND PUMP MEANS FOR MOVING SAID PHOSPHORESCENT LIQUID SUSPENSION THROUGH SAID CONDUIT MEANS, WHEREBY THE LIQUID SUSPENSION RENDERED LUMINOUS BY SAID EXCITATION MEANS AT SAID REMOTE TRANSPARENT PORTION ILLUMINATES THE AREA TO BE LIGHTED WHEN PASSING THROUGH THE TRANSPARENT CONDUIT PORTION IN THE REGION OF SAID AREA.
References Cited (Backward Citations)
US1724572A
Cited
US2038506A
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US1979336A
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US2546239A
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US2392828A
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US3058245A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |