US3299307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroluminescent multilayer stack with in situ formation of active layer and method of making same
Assignee: Individual
•
Filing: 1964-01-13
•
Granted: 1967-01-17
•
Expires: 1984-01-13
Abstract
No abstract record available.
Inventors
- 👤 Inoue Kiyoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:55
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
AN ELECTROLUMINESCENT BODY COMPRISING A STACK OF METALLIC ZINC FILMS WITH A STRUCTURE CHARACTERISTIC OF VAPOR DEPOSITION AND HAVING SURFACE CHARACTERISTIC OF A SULFURIZING TREATMENT OF THE RESPECTIVE METALLIC FILMS FORMING INTERVENING LAYERS OF ELECTROLUMINESCENT MATERIAL BETWEEN SAID FILMS.
Claim 2
Dependent Claim
39 words
AN ELECTROLUMINESCENT BODY COMPRISING A STACK OF METALLIC ZINC FILMS WITH A STRUCTURE CHARACTERISTIC OF VAPOR DEPOSITION AND HAVING SURFACE CHARACTERISTIC OF A SULFURIZING TREATMENT OF THE RESPECTIVE METALLIC FILMS FORMING INTERVENING LAYERS OF ELECTROLUMINESCENT MATERIAL BETWEEN SAID FILMS.
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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |