US3364054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of salvaging phosphor slurry in a spin coating process for making phosphor screens for cathode ray tubes
Assignee: RCA Corp
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Filing: 1963-10-14
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Granted: 1968-01-16
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Expires: 1983-10-14
Abstract
No abstract record available.
Inventors
- 👤 Morris R Weingarten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:15
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/20; H01J9/22; H01J9/221; H01J9/223
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
THE METHOD OF SALVAGING PHOSPHOR SLURRY FROM A RECTANGULAR CATHODE RAY TUBE FACEPLATE PANEL HAVING A SIDE WALL AND INTO WHICH AN EXCESS OF SLURRY HAS BEEN PREVIOUSLY DISPENSED FOR THE PURPOSE OF DEPOSITING A PHOSPHOR LAYER THEREIN, SAID METHOD COMPRISING THE STEPS OF: (A) ROTATING SAID PANEL ABOUT ITS CENTRAL AXIS TO CENTRIFUGALLY FLOW THE EXCESS FLURRY THEREIN TOWARD AND UP SAID SIDE WALL AND ONTO AN OUTER SURFACE THEREOF, (B) ROTATING SAID PANEL ABOUT SAID AXIS TO CENTRIFUGALLY SLING SAID EXCESS SLURRY OFF OF SAID OUTER SURFACE AND THROUGH SPACE AWAY FROM SAID PANEL,
Claim 2
Independent Claim
96 words
THE METHOD OF SALVAGING PHOSPHOR SLURRY FROM A RECTANGULAR CATHODE RAY TUBE FACEPLATE PANEL HAVING A SIDE WALL AND INTO WHICH AN EXCESS OF SLURRY HAS BEEN PREVIOUSLY DISPENSED FOR THE PURPOSE OF DEPOSITING A PHOSPHOR LAYER THEREIN, SAID METHOD COMPRISING THE STEPS OF: (A) ROTATING SAID PANEL ABOUT ITS CENTRAL AXIS TO CENTRIFUGALLY FLOW THE EXCESS FLURRY THEREIN TOWARD AND UP SAID SIDE WALL AND ONTO AN OUTER SURFACE THEREOF, (B) ROTATING SAID PANEL ABOUT SAID AXIS TO CENTRIFUGALLY SLING SAID EXCESS SLURRY OFF OF SAID OUTER SURFACE AND THROUGH SPACE AWAY FROM SAID PANEL,
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) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |