US4245282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illuminating device
Assignee: Individual
•
Filing: 1979-06-25
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Granted: 1981-01-13
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Expires: 1999-06-25
Abstract
Abstract An illuminating device for providing a temporary light source when the power source is interrupted comprising a fluorescent lamp with a net impregnated with phosphorescent material affixed in close proximity thereto.
Inventors
- 👤 Peter L. Sokol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:37
CPC Classifications
F; F21; F21V; F21V17/00; F21V17/04; C; C09; C09K; C09K11/00; C09K11/02; C09K11/025; C09K11/04; C09K11/08; C09K11/56; F21V9/00; F21V9/30; F21V9/32; H; H01; H01J; H01J61/00; H01J61/02; H01J61/30; H01J61/34; H01J61/35
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
45 words
An illuminating device comprising a fluorescent lamp and phosphorescent material affixed in close proximity to said lamp by means of a net impregnated with said phosphorescent material, said net being operative when said fluorescent lamp is extinquished to provide continued illumination for a temporary period.
Claim 2
Dependent Claim
45 words
An illuminating device comprising a fluorescent lamp and phosphorescent material affixed in close proximity to said lamp by means of a net impregnated with said phosphorescent material, said net being operative when said fluorescent lamp is extinquished to provide continued illumination for a temporary period.
Claim 3
Dependent Claim
12 words
The device of claim 1 wherein the net is formed of nylon.
Claim 4
Dependent Claim
23 words
The device of claim 1 wherein the phosphorescent material is selected from the group consisting of calcium sulfide, barium sulfide and zinc sulfide.
Claim 5
Dependent Claim
13 words
The device of claim 1 wherein the net is formed of fiber glass.
Claim 6
Dependent Claim
23 words
The device of claim 1 wherein the impregnated net is annularly disposed around said lamp to form a closed loop about said lamp.
Claim 7
Dependent Claim
35 words
The device of claim 5 wherein the net is substantially in the form of a sleeve having a size the same as the circumferance of the lamp so as to fit closely over said lamp.
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) | 1984-01-13 | 1984-07-14 | 1985-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-13 | 1988-07-14 | 1989-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-13 | 1992-07-14 | 1993-01-13 | $7700.00 | Window Closed / Lapsed |