US2936252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of layers of electroluminescent materials
Assignee: Societe dElectronique et dAutomatisme SA
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Filing: 1957-09-20
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Granted: 1960-05-10
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Expires: 1977-09-20
Abstract
No abstract record available.
Inventors
- 👤 Hanlet Jacques Marie Noel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:51
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/14; H05B33/145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
IN A PROCESS OF MAKING AN ELECTROLUMINESCENT LAYER, THE STEPS WHICH COMPRISE PROVIDING A COATING MATERIAL CONSISTING OF MONOCRYSTALS OF A SUBSTANTIALLY PURE BINARY COMPOUND SELECTED FROM THE GROUP CONSISTING OF OXIDES AND SULFIDES OF CADMUIM AND ZINC, PROVIDING A TRANSLUCENT BASE POSITIONED IN A ZONE MAINTAINED UNDER HIGH VACUUM, VAPORIZING SAID MONOCRYSTALS IN SAID ZONE, CONTACTING SAID
Claim 2
Dependent Claim
58 words
IN A PROCESS OF MAKING AN ELECTROLUMINESCENT LAYER, THE STEPS WHICH COMPRISE PROVIDING A COATING MATERIAL CONSISTING OF MONOCRYSTALS OF A SUBSTANTIALLY PURE BINARY COMPOUND SELECTED FROM THE GROUP CONSISTING OF OXIDES AND SULFIDES OF CADMUIM AND ZINC, PROVIDING A TRANSLUCENT BASE POSITIONED IN A ZONE MAINTAINED UNDER HIGH VACUUM, VAPORIZING SAID MONOCRYSTALS IN SAID ZONE, CONTACTING SAID
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) | 1963-05-10 | 1963-11-09 | 1964-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-10 | 1967-11-09 | 1968-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-10 | 1971-11-09 | 1972-05-10 | $7700.00 | Window Closed / Lapsed |