Patent US2824814A successfully refreshed from Google Patents.
US2824814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorescent coating process
Assignee: General Electric Co
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Filing: 1954-05-24
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Granted: 1958-02-25
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Expires: 1974-05-24
Abstract
No abstract record available.
Inventors
- 👤 Jones Shannon
- 👤 Mary V Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:07
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
THE PROCESS OF COATING A VITREOUS SURFACE WITH POWDERED LUMINESCENT MATERIAL WHICH INCLUDES THE STEPS OF FLOWING OVER SAID SURFACE A SUSPENSION OF SAID LUMINESCENT MATERIAL IN A WATER BINDER SOLUTION OF A WATERSOLUBLE CELLULOSE DERIVATIVE COMPRISING ESSENTIALLY AMMONIUM CARBOXYMETHYL CELLULOSE, DRAINING THE EXCESS SUSPENSION FROM SAID SURFACE AND DRYING THE RESULTANT COATING, AND THEREAFTER HEATING THE COATING SO FORMED TO A TEMPERATURE AT WHICH SAID WTER-SOLUBLE CELLULOSE DERIVATIVE IS ESSENTIALLY EXPELLED.
Claim 2
Dependent Claim
72 words
THE PROCESS OF COATING A VITREOUS SURFACE WITH POWDERED LUMINESCENT MATERIAL WHICH INCLUDES THE STEPS OF FLOWING OVER SAID SURFACE A SUSPENSION OF SAID LUMINESCENT MATERIAL IN A WATER BINDER SOLUTION OF A WATERSOLUBLE CELLULOSE DERIVATIVE COMPRISING ESSENTIALLY AMMONIUM CARBOXYMETHYL CELLULOSE, DRAINING THE EXCESS SUSPENSION FROM SAID SURFACE AND DRYING THE RESULTANT COATING, AND THEREAFTER HEATING THE COATING SO FORMED TO A TEMPERATURE AT WHICH SAID WTER-SOLUBLE CELLULOSE DERIVATIVE IS ESSENTIALLY EXPELLED.
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) | 1961-02-24 | 1961-08-26 | 1962-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-24 | 1965-08-26 | 1966-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-24 | 1969-08-26 | 1970-02-25 | $7700.00 | Window Closed / Lapsed |