Patent US732851A successfully refreshed from Google Patents.
Patent US2642365A successfully refreshed from Google Patents.
US2642365A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming a smooth surface on a substratum
Assignee: Hartford National Bank and Trust Co
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Filing: 1947-07-24
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Granted: 1953-06-16
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Expires: 1967-07-24
Abstract
No abstract record available.
Inventors
- 👤 Gier Johannes De
- 👤 Peper Jan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:22
CPC Classifications
B; B05; B05D; B05D5/00; B05D5/06; H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/18; H01J29/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
197 words
A METHOD FOR APPLYING A SMOOTH THIN LAYER OF ORGANIC SOLID COATING MATERIAL ON TO A LAYER OF LUMINESCENT MATERIAL HAVING INTERSTICES THEREIN, SAID LAYER OF LUMINESCENT MATERIAL BEING SUPPORTED BY THE INNER END WALL OF A CATHODE-RAY TUBE ENVELOPE WHICH COMPRISES THE STEP OF FILLING THE INTERSTICES IN THE LUMINESCENT MATERIAL WITH A HEAT VOLATILIZABLE LIQUID HAVING A BOILING POINT BELOW THE DESTRUCTIVE TEMPERATURE OF SAID ORGANIC MATERIAL IN AN AMOUNT JUST SUFFICIENT TO FILL THE INTERSTICES TO THE HIGHEST SURFACE LEVEL OF THE LUMINESCENT MATERIAL WHEREBY THE LEVEL OF THE LIQUID IS FLUSH WITH THE LUMINESCENT MATERIAL THEREBY FORMING A SMOOTH LEVEL SURFACE FOR THE APPLICATION OF A SURFACE LAYER OF A COATING MATERIAL INSOLUBLE IN THE LIQUID THEREOVER, SAID LIQUID BEING INERT TO SAID LUMINESCENT MATERIAL AND TO SAID SURFACE LAYER, APPLYING A SOLUTION OF AN ORGANIC COATING MATERIAL IN A SOLVENT IMMISCIBLE WITH SAID LIQUID IN SAID INTERSTICES OVER THE LUMINESCENT MATERIAL, EVAPORATING THE SOLVENT TO FORM A SMOOTH THIN LAYER OF THE COATING MATERIAL IN CONTACT WITH ONLY THE HIGHEST SURFACE PORTIONS OF THE LUMINESCENT MATERIAL, AND THEREAFTER VOLATILIZING THE LIQUID TO REMOVE THE SAME FROM THE INTERSTICES OF THE LUMINESCENT MATERIAL.
Claim 2
Independent Claim
197 words
A METHOD FOR APPLYING A SMOOTH THIN LAYER OF ORGANIC SOLID COATING MATERIAL ON TO A LAYER OF LUMINESCENT MATERIAL HAVING INTERSTICES THEREIN, SAID LAYER OF LUMINESCENT MATERIAL BEING SUPPORTED BY THE INNER END WALL OF A CATHODE-RAY TUBE ENVELOPE WHICH COMPRISES THE STEP OF FILLING THE INTERSTICES IN THE LUMINESCENT MATERIAL WITH A HEAT VOLATILIZABLE LIQUID HAVING A BOILING POINT BELOW THE DESTRUCTIVE TEMPERATURE OF SAID ORGANIC MATERIAL IN AN AMOUNT JUST SUFFICIENT TO FILL THE INTERSTICES TO THE HIGHEST SURFACE LEVEL OF THE LUMINESCENT MATERIAL WHEREBY THE LEVEL OF THE LIQUID IS FLUSH WITH THE LUMINESCENT MATERIAL THEREBY FORMING A SMOOTH LEVEL SURFACE FOR THE APPLICATION OF A SURFACE LAYER OF A COATING MATERIAL INSOLUBLE IN THE LIQUID THEREOVER, SAID LIQUID BEING INERT TO SAID LUMINESCENT MATERIAL AND TO SAID SURFACE LAYER, APPLYING A SOLUTION OF AN ORGANIC COATING MATERIAL IN A SOLVENT IMMISCIBLE WITH SAID LIQUID IN SAID INTERSTICES OVER THE LUMINESCENT MATERIAL, EVAPORATING THE SOLVENT TO FORM A SMOOTH THIN LAYER OF THE COATING MATERIAL IN CONTACT WITH ONLY THE HIGHEST SURFACE PORTIONS OF THE LUMINESCENT MATERIAL, AND THEREAFTER VOLATILIZING THE LIQUID TO REMOVE THE SAME FROM THE INTERSTICES OF THE LUMINESCENT MATERIAL.
References Cited (Backward Citations)
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Cited
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US1690427A
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US2241215A
Cited
US2374310A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |