US3247415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorescent panel lamp coating
Assignee: General Electric Co
•
Filing: 1961-05-01
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Granted: 1966-04-19
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Expires: 1981-05-01
Abstract
No abstract record available.
Inventors
- 👤 William C Martyny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:12
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/04; H01J61/10; H01J61/103; H01J61/38; H01J61/42; H01J61/44
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
96 words
A FLUORESCENT PANEL LAMP COMPRISING A VITREOUS ENVELOPE FORMED BY A BACKPLATE AND A FACEPLATE SEALED TOGETHER ALONG THEIR MARGINS, SAID BACKPLATE HAVING A PLURALITY OF GROOVED CHANNELWAYS EXTENDING THEREIN SIDE BY SIDE WITH PARTITIONS BETWEEN THEM AND JOINED AT ALTERNATE ENDS TO DEFINE A LABYRINTHINE DISCHARGE CHANNEL, SAID FACEPLATE HAVING A PLURALITY OF SHALLOW EMBOSSMENTS FORMED THEREIN WITH LANDS EXTENDING BETWEEN THE EMBOSSMENTS AND UNDERLYING THE PARTITIONS BETWEEN SAID CHANNELWAYS IN THE BACKPLATE, AND A PHOSPHOR COATING EXTENDING OVER THE ENTIRE FACEPLATE AND INCLUDING THE AREAS OF THE LANDS UNDERLYING THE PARTITIONS IN SAID BACKPLATE.
References Cited (Backward Citations)
FR959812A
Cited
CA466812A
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US2344081A
Cited
US2406146A
Cited
US2555749A
Cited
US2824814A
Cited
US2956150A
Cited
US3047763A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |