US2941104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroluminescent structures
Assignee: EIDP Inc
•
Filing: 1958-11-20
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Granted: 1960-06-14
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Expires: 1978-11-20
Abstract
No abstract record available.
Inventors
- 👤 Swindells Frank Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:11
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A FLEXIBLE ELECTROLUMINSCENT STRUCTURE COMPRISING A TRANSPARENT HYDROPHOBIC MACROMOLECULAR ORGANIC POLYMER FILM COATED WITH A LIGHT TRANSMITTING ELECTRICALLY CONDUCTIVE METALLIC LAYER, A DIELECTRIC BINDER-PHOSPHOR LAYER THEREOVER CONSISTING ESSENTIALLY OF A MIXTURE OF THE FOLLOWING RESINS: 30 TO 75% BY WEIGHT MELAMINE-FORMALDEHYDE, 5 TO 50% BY WEIGHT PHTHALIC ACID ALKYD, AND 5 TO 50% BY WEIGHT OF A POLYESTER DERIVED FROM A POLYHYDRIC ALCOHOL AND AN ALIPHATIC DICARBOXYLIC ACID OF 6 TO 10 CARBON ATOMS, WITH FROM 15 TO 70% OF A PHOSPHOR BASED ON THE WEIGHT OF THE BINDER-PHOSPHOR LAYER, AND AN ELECTRICALLY CONDUCTIVE METALLIC LAYER THEREOVER IN INIMATE CONTACT WITH THE BINDER-PHOSPHOR LAYER.
Claim 2
Dependent Claim
104 words
A FLEXIBLE ELECTROLUMINSCENT STRUCTURE COMPRISING A TRANSPARENT HYDROPHOBIC MACROMOLECULAR ORGANIC POLYMER FILM COATED WITH A LIGHT TRANSMITTING ELECTRICALLY CONDUCTIVE METALLIC LAYER, A DIELECTRIC BINDER-PHOSPHOR LAYER THEREOVER CONSISTING ESSENTIALLY OF A MIXTURE OF THE FOLLOWING RESINS: 30 TO 75% BY WEIGHT MELAMINE-FORMALDEHYDE, 5 TO 50% BY WEIGHT PHTHALIC ACID ALKYD, AND 5 TO 50% BY WEIGHT OF A POLYESTER DERIVED FROM A POLYHYDRIC ALCOHOL AND AN ALIPHATIC DICARBOXYLIC ACID OF 6 TO 10 CARBON ATOMS, WITH FROM 15 TO 70% OF A PHOSPHOR BASED ON THE WEIGHT OF THE BINDER-PHOSPHOR LAYER, AND AN ELECTRICALLY CONDUCTIVE METALLIC LAYER THEREOVER IN INIMATE CONTACT WITH THE BINDER-PHOSPHOR LAYER.
References Cited (Backward Citations)
US2733367A
Cited
US2566349A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |