US2697668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for settling phosphor screens
Assignee: RCA Corp
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Filing: 1950-06-23
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Granted: 1954-12-21
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Expires: 1970-06-23
Abstract
No abstract record available.
Inventors
- 👤 Crosby Gilmore Erwin
- 👤 Markoski John Adam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:21
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/20; H01J9/22; H01J9/221; H01J9/223
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
THE METHOD OF FORMING A SCREEN OF PHOSPHOR MATERIAL ON A SUPPORTING MEMBER, SAID METHOD COMPRISING THE STEPS OF, FORMING A SUSPENSION OF SAID PHOSPHOR MATERIAL IN WATER, MIXING IN SAID SUSPENSION A SOLUBLE PHOSPHATE WITH A SOLUBLE COMPOUND HAVING CATIONS WHICH WILL FORM WITH THE PHOSPHATE IONS AN INSOLUBLE PHOSPHATE PRECIPITATE TO INTIMATELY MIX WITH SAID PHOSPHOR MATERIAL, DRYING SAID PHOSPHOR AND PHOSPHATE MIXTURE, AND SETTLING SAID PHOSPHATE AND PHOSPHOR MIXTURE FROM A SUSPENSION THEREOF IN AN AQUEOUS SILICATE SOLUTION ONTO SAID SUPPORTING MEMBER.
Claim 2
Independent Claim
85 words
THE METHOD OF FORMING A SCREEN OF PHOSPHOR MATERIAL ON A SUPPORTING MEMBER, SAID METHOD COMPRISING THE STEPS OF, FORMING A SUSPENSION OF SAID PHOSPHOR MATERIAL IN WATER, MIXING IN SAID SUSPENSION A SOLUBLE PHOSPHATE WITH A SOLUBLE COMPOUND HAVING CATIONS WHICH WILL FORM WITH THE PHOSPHATE IONS AN INSOLUBLE PHOSPHATE PRECIPITATE TO INTIMATELY MIX WITH SAID PHOSPHOR MATERIAL, DRYING SAID PHOSPHOR AND PHOSPHATE MIXTURE, AND SETTLING SAID PHOSPHATE AND PHOSPHOR MIXTURE FROM A SUSPENSION THEREOF IN AN AQUEOUS SILICATE SOLUTION ONTO SAID SUPPORTING MEMBER.
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) | 1957-12-20 | 1958-06-21 | 1958-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-20 | 1962-06-21 | 1962-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-20 | 1966-06-21 | 1966-12-21 | $7700.00 | Window Closed / Lapsed |