US2710286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of removing and salvaging adherent materials
Assignee: RCA Corp
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Filing: 1953-02-25
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Granted: 1955-06-07
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Expires: 1973-02-25
Abstract
No abstract record available.
Inventors
- 👤 Richard H Zachariason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:53
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/20; H01J9/22; H01J9/221; H01J9/224
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
THE PROCESS OF REMOVING AND SALVAGING WATER-IN SOLUBLE FLUORESCENT PHOSPHOR MATERIAL FROM A CATHODE-RAY SCREEN OF THE TYPE WHEREIN SAID MATERIAL IS SECURED TO A SCREEN PLATE BY MEANS OF A WATER-SOLUBLE BINDER AND IS COVERED BY AN ELECTRON-TRANSPARENT ALUMINUM COATING AND WHEREIN SAID PHOSPHOR MATERIAL IS SUCH THAT IT WILL NOT REACT CHEMICALLY WITH A WATER SOLUTION OF ALKALI METAL CARBONATE, SAID PROCESS COMPRISING: DIRECTING UPON SAID SCREEN A JET CONTAINING A POWDERED ALKALI METAL CARBONATE, WHEREBY TO REMOVE SAID MATERIAL, SAID BINDER, AND SAID ALUMINUM FROM SAID PLATE; SUBJECTING THE RESULTING MIXTURE OF SCREEN MATERIALS AND POWDERED ALKALI METAL CARBONATE TO A WATER BATH TO FORM AN ALKALINE SOLUTION IN WHICH SAID POWDERED ALKALI METAL CARBONATE, SAID BINDER, AND SAID ALUMINUM ARE DISSOLVED, AND THEN REMOVING SAID MATERIAL FROM SAID BATH WATER.
Claim 2
Dependent Claim
134 words
THE PROCESS OF REMOVING AND SALVAGING WATER-IN SOLUBLE FLUORESCENT PHOSPHOR MATERIAL FROM A CATHODE-RAY SCREEN OF THE TYPE WHEREIN SAID MATERIAL IS SECURED TO A SCREEN PLATE BY MEANS OF A WATER-SOLUBLE BINDER AND IS COVERED BY AN ELECTRON-TRANSPARENT ALUMINUM COATING AND WHEREIN SAID PHOSPHOR MATERIAL IS SUCH THAT IT WILL NOT REACT CHEMICALLY WITH A WATER SOLUTION OF ALKALI METAL CARBONATE, SAID PROCESS COMPRISING: DIRECTING UPON SAID SCREEN A JET CONTAINING A POWDERED ALKALI METAL CARBONATE, WHEREBY TO REMOVE SAID MATERIAL, SAID BINDER, AND SAID ALUMINUM FROM SAID PLATE; SUBJECTING THE RESULTING MIXTURE OF SCREEN MATERIALS AND POWDERED ALKALI METAL CARBONATE TO A WATER BATH TO FORM AN ALKALINE SOLUTION IN WHICH SAID POWDERED ALKALI METAL CARBONATE, SAID BINDER, AND SAID ALUMINUM ARE DISSOLVED, AND THEN REMOVING SAID MATERIAL FROM SAID BATH WATER.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-06 | 1958-12-06 | 1959-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-06 | 1962-12-06 | 1963-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-06 | 1966-12-06 | 1967-06-07 | $7700.00 | Window Closed / Lapsed |