US3017288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for filming phosphor screens
Assignee: General Electric Co
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Filing: 1955-10-20
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Granted: 1962-01-16
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Expires: 1975-10-20
Abstract
No abstract record available.
Inventors
- 👤 Harold F Windsor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:32
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/20; H01J9/22; H01J9/227; H01J9/2271; Y; Y10; Y10S; Y10S430/00; Y10S430/136
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
IN A METHOD OF MAKING A LUMINESCENT SCREEN FOR A CATHODE RAY TUBE OR THE LIKE INCLUDES THE STEPS OF COVERING A SUBSTRATE WITH A LAYER OF CUSHIONING LIQUID CONTAINING PATICLES OF LUMINESCENT MATERIAL AND A WATER SOLUBLE BINDER FORSECURING SAID PARTICLES TOGETHER, ALLOWING THE LUMINESCENT MATERIAL AND BINDER TO SETTLE THROUGH THE CUSHIONING LIQUID ONTO THE SUBSTRATE IN A LAYER OF DESIRED THICKNESS, REMOVING THE CUSHIONING LIQUID, AND DRYING THE LAYER OFSETTLED MATERIAL IN PLACE ON THE SUBSTRATE, RE-COVERING THE LAYER OF SETTLED MATERIAL WITH AN AQAUEOUS SOLUTION, INTRODUCING A CHARGE OF ORGANIC FILM FORMING MATERIAL ONTO THE SURFACE OF SAID AQUEOUS SOLUTION, AND REMOVING SAID SOLUTION FROM BENEATH SAID FILM FORMING MATERIAL ONTO THE SURFACE OF SAID AQUEOUS SOLUCONTACT WITH THE LAYER OF LUMINESCENT MATERIAL, THE IMPROVEMENT IN WHICH THE AQUEOUS SOLUTION APPLIED TO THE DRIED LAYER OF LUMINESCENT MATERIAL CONTAINS AN ALKALI METAL SILICATE IN A CONCENTRATION OF 0.0K TO 0.6 PERCENT BY WEIGHT.
Claim 2
Dependent Claim
157 words
IN A METHOD OF MAKING A LUMINESCENT SCREEN FOR A CATHODE RAY TUBE OR THE LIKE INCLUDES THE STEPS OF COVERING A SUBSTRATE WITH A LAYER OF CUSHIONING LIQUID CONTAINING PATICLES OF LUMINESCENT MATERIAL AND A WATER SOLUBLE BINDER FORSECURING SAID PARTICLES TOGETHER, ALLOWING THE LUMINESCENT MATERIAL AND BINDER TO SETTLE THROUGH THE CUSHIONING LIQUID ONTO THE SUBSTRATE IN A LAYER OF DESIRED THICKNESS, REMOVING THE CUSHIONING LIQUID, AND DRYING THE LAYER OFSETTLED MATERIAL IN PLACE ON THE SUBSTRATE, RE-COVERING THE LAYER OF SETTLED MATERIAL WITH AN AQAUEOUS SOLUTION, INTRODUCING A CHARGE OF ORGANIC FILM FORMING MATERIAL ONTO THE SURFACE OF SAID AQUEOUS SOLUTION, AND REMOVING SAID SOLUTION FROM BENEATH SAID FILM FORMING MATERIAL ONTO THE SURFACE OF SAID AQUEOUS SOLUCONTACT WITH THE LAYER OF LUMINESCENT MATERIAL, THE IMPROVEMENT IN WHICH THE AQUEOUS SOLUTION APPLIED TO THE DRIED LAYER OF LUMINESCENT MATERIAL CONTAINS AN ALKALI METAL SILICATE IN A CONCENTRATION OF 0.0K TO 0.6 PERCENT BY WEIGHT.
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) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |