US3353983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorescent screen for brightness amplifier tubes and method of making the same
Assignee: Compagnie Francaise Thomson Houston SA
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Filing: 1963-08-12
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Granted: 1967-11-21
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Expires: 1983-08-12
Abstract
No abstract record available.
Inventors
- 👤 Guyot Leucien Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:30
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/38; H01J29/385; G; G21; G21K; G21K4/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663; Y10T428/31678; Y10T428/31692
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
IN A BRIGHTNESS AMPLIFIER FLUORESCENT SCREEN ASSEMBLY COMPRISING A SUPPORTING PLATE MADE FROM A MATERIAL TRANSPARENT TO LIGHT RAYS, A PHOTOCATHODE ELEMENT APPLIED TO ONE SIDE OF SAID PLATE, A LAYER OF FLUORESCENT CRYSTALS DEPOSITED ON THE OPPOSITE SIDE OF THE PLATE, AND A REFLECTIVE METAL COATING OVERLYING SAID LAYER, THE IMPROVEMENT COMPRISING THE COMBINATION OF AN INORGANIC BINDER SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF BORAX AND AN ALKALINE EARTH METAL SILICATE MIXED WITH SAID LAYER FOR BINDING THE CRYSTALS THEREOF, AND A DISCRETE SUBSTANTIALLY CONTINUOUS FILM OF SILICONE RESIN APPLIED OVER SAID FLUORESCENT CRYSTAL LAYER IN SAID INORGANIC BINDER AND DISPOSED BENEATH SAID METAL COATING SO AS TO BE LOCATED THEREBETWEEN TO PROVIDE AN UNBROKEN SEPARATION BETWEEN SAID LAYER AND COATING AND A SMOOTH REFLECTIVE UNDERSURFACE FOR SAID COATING.
Claim 2
Dependent Claim
131 words
IN A BRIGHTNESS AMPLIFIER FLUORESCENT SCREEN ASSEMBLY COMPRISING A SUPPORTING PLATE MADE FROM A MATERIAL TRANSPARENT TO LIGHT RAYS, A PHOTOCATHODE ELEMENT APPLIED TO ONE SIDE OF SAID PLATE, A LAYER OF FLUORESCENT CRYSTALS DEPOSITED ON THE OPPOSITE SIDE OF THE PLATE, AND A REFLECTIVE METAL COATING OVERLYING SAID LAYER, THE IMPROVEMENT COMPRISING THE COMBINATION OF AN INORGANIC BINDER SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF BORAX AND AN ALKALINE EARTH METAL SILICATE MIXED WITH SAID LAYER FOR BINDING THE CRYSTALS THEREOF, AND A DISCRETE SUBSTANTIALLY CONTINUOUS FILM OF SILICONE RESIN APPLIED OVER SAID FLUORESCENT CRYSTAL LAYER IN SAID INORGANIC BINDER AND DISPOSED BENEATH SAID METAL COATING SO AS TO BE LOCATED THEREBETWEEN TO PROVIDE AN UNBROKEN SEPARATION BETWEEN SAID LAYER AND COATING AND A SMOOTH REFLECTIVE UNDERSURFACE FOR SAID COATING.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |