US3243629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroluminescent lamp and manufacture thereof
Assignee: General Electric Co
•
Filing: 1961-06-19
•
Granted: 1966-03-29
•
Expires: 1981-06-19
Abstract
No abstract record available.
Inventors
- 👤 Robert V Levetan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:12
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/02; H05B33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A LAMINATED EVACUATED ELECTROLUMINESCENT LAMP COMPRISING AN ELECTRICALLY ACTIVE ASSEMBLY INCLUDING AN ELECTROLUMINESCENT PHOSPHOR LAYER AND A LAYER OF CONDUCTIVE LIGHT-TRANSMITTING MATERIAL OVER SAID PHOSPHOR LAYER, SAID PHOSPHOR LAYER AND CONDUCTIVE LIGHT-TRANSMITTING LAYER BEING ENCLOSED WITHIN A SEALED EVACUATED ENVELOPE COMPRISED OF A PAIR OF FLEXIBLE ENCAPSULATING SHEETS OF LOW WATER-VAPOR PERMEABILITY SEALED TOGETHER AROUND THEIR MARGINAL EDGES AND SERVING AS WATER-VAPOR BARRIERS TO DELAY SUBSTANTIALLY THE ONSET OF WATER DEPRECIATION IN THE LAMP, AT LEAST THAT ONE OF SAID BARRIER SHEETS OVERLYING THE SAID CONDUCTIVE LIGHT-TRANSMITTING LAYER BEING TRANSPARENT AND CONSISTING OF MICA FLAKE PAPER HAVING
Claim 2
Dependent Claim
97 words
A LAMINATED EVACUATED ELECTROLUMINESCENT LAMP COMPRISING AN ELECTRICALLY ACTIVE ASSEMBLY INCLUDING AN ELECTROLUMINESCENT PHOSPHOR LAYER AND A LAYER OF CONDUCTIVE LIGHT-TRANSMITTING MATERIAL OVER SAID PHOSPHOR LAYER, SAID PHOSPHOR LAYER AND CONDUCTIVE LIGHT-TRANSMITTING LAYER BEING ENCLOSED WITHIN A SEALED EVACUATED ENVELOPE COMPRISED OF A PAIR OF FLEXIBLE ENCAPSULATING SHEETS OF LOW WATER-VAPOR PERMEABILITY SEALED TOGETHER AROUND THEIR MARGINAL EDGES AND SERVING AS WATER-VAPOR BARRIERS TO DELAY SUBSTANTIALLY THE ONSET OF WATER DEPRECIATION IN THE LAMP, AT LEAST THAT ONE OF SAID BARRIER SHEETS OVERLYING THE SAID CONDUCTIVE LIGHT-TRANSMITTING LAYER BEING TRANSPARENT AND CONSISTING OF MICA FLAKE PAPER HAVING
References Cited (Backward Citations)
US2945976A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |