US2900271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroluminescent devices and methods therefor
Assignee: Raytheon Co
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Filing: 1958-07-29
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Granted: 1959-08-18
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Expires: 1978-07-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Alfred J Macintyre
- 👤 Richard A Martel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:02
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/26; H05B33/28; Y; Y10; Y10S; Y10S428/00; Y10S428/917; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24364; Y10T428/31504; Y10T428/31678; Y10T428/31688; Y10T428/31692
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
58 words
THE METHOD OF MANUFACTURING AND ASSEMBLING AN ELECTROLUMINESCENT DEVICE COMPRISING THE STEPS OF ROUGHENING A SURFACE OF A PLASTIC BASE MEMBER, VAPORDEPOSITING A LIGHT-TRANSPARENT ELECTRODE ONTO SAID ROUGHENED SURFACE, DISPOSING AN ELECTROLUMINESCENT PHOSPHOR MATERIAL DISPERSED IN A LIGHT-TRANSPARENT DIELECTRIC MEDIUM ADJACENT SAID LIGHT-TRANSPARENT ELECTRODE, AND DISPOSING A SSECOND ELECTRODE ADJACENT SAID ELECTROLUMINESCENT MATERIAL DISPERSED IN SAID DIELECTRIC MEDIUM.
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) | 1962-08-17 | 1963-02-16 | 1963-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-17 | 1967-02-16 | 1967-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-17 | 1971-02-16 | 1971-08-18 | $7700.00 | Window Closed / Lapsed |