US2779685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing a photocathode screen assembly for an image amplifier
Assignee: Hartford National Bank and Trust Co
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Filing: 1953-03-13
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Granted: 1957-01-29
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Expires: 1973-03-13
Abstract
No abstract record available.
Inventors
- 👤 Teves Marten Cornelis
- 👤 Tol Taeke
- 👤 Linden Petrus Cornelis Van Der
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:36
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/02; H01J9/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A METHOD OF MANUFACTURING A PHOTOCATHODE SCREEN ASSEMBLY FOR AN IMAGE AMPLIFIER COMPRISING THE STEPS OF APPLYING A SUSPENSION OF A FLUROESCENT MATERIAL IN A SILICONE TO ONE SURFACE OF A SUPPORT OF A METAL OF LOW ATOMIC NUMBER WHICH IS RELATIVELY PERVIOUS TO IMAGE PRODUCING RADIATION, HEATING THE SUSPENSION TO A TEMPERATURE OF ABOUT 200*C. FOR ABOUT EIGHT HOURS TO POLYMERIZE THE SILICON TO FORM A SMOOTH SURFACE THEREON, APPLYING TO THE SMOOTH SURFACE OF THE SILICONE SUSPENSION A CONDUCTIVE METAL LAYER WHICH IS HIGHLY PERVIOUS TO FLURORESCENT LUMINESCENCE, AND APPLYING A PHOTOELECTRIC LAYER OVER SAID CONDUCTIVE METAL LAYER.
Claim 2
Independent Claim
100 words
A METHOD OF MANUFACTURING A PHOTOCATHODE SCREEN ASSEMBLY FOR AN IMAGE AMPLIFIER COMPRISING THE STEPS OF APPLYING A SUSPENSION OF A FLUROESCENT MATERIAL IN A SILICONE TO ONE SURFACE OF A SUPPORT OF A METAL OF LOW ATOMIC NUMBER WHICH IS RELATIVELY PERVIOUS TO IMAGE PRODUCING RADIATION, HEATING THE SUSPENSION TO A TEMPERATURE OF ABOUT 200*C. FOR ABOUT EIGHT HOURS TO POLYMERIZE THE SILICON TO FORM A SMOOTH SURFACE THEREON, APPLYING TO THE SMOOTH SURFACE OF THE SILICONE SUSPENSION A CONDUCTIVE METAL LAYER WHICH IS HIGHLY PERVIOUS TO FLURORESCENT LUMINESCENCE, AND APPLYING A PHOTOELECTRIC LAYER OVER SAID CONDUCTIVE METAL LAYER.
References Cited (Backward Citations)
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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) | 1960-01-29 | 1960-07-30 | 1961-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-29 | 1964-07-30 | 1965-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-29 | 1968-07-30 | 1969-01-29 | $7700.00 | Window Closed / Lapsed |