US3167677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroluminescent device
Assignee: Wyeth Holdings LLC
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Filing: 1960-12-16
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Granted: 1965-01-26
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Expires: 1980-12-16
Abstract
No abstract record available.
Inventors
- 👤 Winfried J Fremuth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:16
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
IN AN INTEGRATED ELECTROLUMINESCENT STRUCTURE CHARACTERIZED BY: (1) A FIRST ELECTRICALLY-CONDUCTIVE LAYER; (2) A SECOND ELECTRICALLY-CONDUCTIVE LAYER; AT LEAST ONE OF SAID FIRST AND SECOND LAYERS BEING LIGHT CONDUCTIVE; SAID FIRST AND SECOND LAYERS BEING INSULATED FROM ELECTRICAL CONTACT BY,
Claim 2
Dependent Claim
40 words
IN AN INTEGRATED ELECTROLUMINESCENT STRUCTURE CHARACTERIZED BY: (1) A FIRST ELECTRICALLY-CONDUCTIVE LAYER; (2) A SECOND ELECTRICALLY-CONDUCTIVE LAYER; AT LEAST ONE OF SAID FIRST AND SECOND LAYERS BEING LIGHT CONDUCTIVE; SAID FIRST AND SECOND LAYERS BEING INSULATED FROM ELECTRICAL CONTACT BY,
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) | 1968-01-26 | 1968-07-27 | 1969-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-26 | 1972-07-27 | 1973-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-26 | 1976-07-27 | 1977-01-26 | $7700.00 | Window Closed / Lapsed |