US2909444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screen settling system
Assignee: Thomas Electronics Inc
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Filing: 1957-12-10
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Granted: 1959-10-20
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Expires: 1977-12-10
Abstract
No abstract record available.
Inventors
- 👤 Seats Peter
- 👤 Jr Leo V Connolly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:51
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/20; H01J9/22; H01J9/221; H01J9/223
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A METHOD OF FORMING A LUMINESCENT SCREEN ON A SOLID SURFACE COMPRISING THE STEPS OF PROVIDING AN ELECTROLYTE COMPRISING A SOLUTION OF A HIGHLY IONIZED GROUP II METAL SALT OVER SAID SURFACE, MIXING WITH SAID ELECTROLYTE A SOLUTION OF POTASSIUM METAPHOSPHATE IN WATER, WHICH SOLUTION HAS A LUMINESCENT MATERIAL SUSPENDED THEREIN, TO CAUSE THE PRECIPITATION OF AN INSOLUBLE PRODUCT ON SAID SOLID SURFACE TO BIND SAID LUMINESCENT MATERIAL TO SAID SOLID SURFACE, AND REMOVING EXCESS LIQUID FROM SAID SOLID SURFACE.
Claim 2
Independent Claim
80 words
A METHOD OF FORMING A LUMINESCENT SCREEN ON A SOLID SURFACE COMPRISING THE STEPS OF PROVIDING AN ELECTROLYTE COMPRISING A SOLUTION OF A HIGHLY IONIZED GROUP II METAL SALT OVER SAID SURFACE, MIXING WITH SAID ELECTROLYTE A SOLUTION OF POTASSIUM METAPHOSPHATE IN WATER, WHICH SOLUTION HAS A LUMINESCENT MATERIAL SUSPENDED THEREIN, TO CAUSE THE PRECIPITATION OF AN INSOLUBLE PRODUCT ON SAID SOLID SURFACE TO BIND SAID LUMINESCENT MATERIAL TO SAID SOLID SURFACE, AND REMOVING EXCESS LIQUID FROM SAID SOLID SURFACE.
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) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |