US3313652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making an electroluminescent device
Assignee: Philips North America LLC
•
Filing: 1963-05-03
•
Granted: 1967-04-11
•
Expires: 1983-05-03
Abstract
No abstract record available.
Inventors
- 👤 Robert J Blazek
- 👤 Jr Ivan Buck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:28
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/22; Y; Y10; Y10S; Y10S428/00; Y10S428/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
IN A METHOD OF MANUFACTURING AN ELECTROLUMINESCENT DEVICE WHICH INCORPORATES AS A COMPONENT THEREOF A SEPARATE LAYER PRINCIPALLY COMPRISING BARIUM TITANATE CARRIED ON AND ADHERED TO A RIGID SUBSTRATE, THE IMPROVEMENT WHICH COMPRISES, FLAME SPRAYING BARIUM TITANATE AS A CONTINOUS LAYER OF PREDETERMINED THICKNESS ONTO SAID SUBSTRATE.
Claim 2
Dependent Claim
47 words
IN A METHOD OF MANUFACTURING AN ELECTROLUMINESCENT DEVICE WHICH INCORPORATES AS A COMPONENT THEREOF A SEPARATE LAYER PRINCIPALLY COMPRISING BARIUM TITANATE CARRIED ON AND ADHERED TO A RIGID SUBSTRATE, THE IMPROVEMENT WHICH COMPRISES, FLAME SPRAYING BARIUM TITANATE AS A CONTINOUS LAYER OF PREDETERMINED THICKNESS ONTO SAID SUBSTRATE.
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) | 1970-04-10 | 1970-10-10 | 1971-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-10 | 1974-10-10 | 1975-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-10 | 1978-10-10 | 1979-04-11 | $7700.00 | Window Closed / Lapsed |