US2597617A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of depositing and impervious metal film on a granular surface
Assignee: General Electric Co
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Filing: 1946-11-09
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Granted: 1952-05-20
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Expires: 1966-11-09
Abstract
No abstract record available.
Inventors
- 👤 Von C Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:59
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/18; H01J29/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
THE METHOD OF PRODUCING A SMOOTH THIN METAL BACKING ON A GRANULAR FLUORESCENT SCREEN WHICH COMPRISES THE STEPS OF APPLYING SUFFICIENT WATER TO THE SCREEN TO FILL THE INTERGRANULAR SPACES, COVERING THE SCREEN AND WATER WITH A LAYER OF A SOLUTION OF WATER-INSOLUBLE SYNTHETIC HEAT REMOVABLE RESIN IN A VOLATILE NON-AQUEOUS SOLVENT TO A THICKNESS IN THE ORDER OF 500 TO 10,000 ANGSTROM UNITS, EVAPORATING THE SOLVENT TO CAUSE THE RESIN TO SET, DEPOSITING A THIN LAYER OF METAL ON THE RESIN BY VAPORIZING THE METAL AND BAKING THE SCREEN AT A TEMPERATURE IN THE ORDER OF 400* C. TO REMOVE THE RESIN AND COMPLETE THE METAL BACKED FLUORESCENT SCREEN.
Claim 2
Independent Claim
110 words
THE METHOD OF PRODUCING A SMOOTH THIN METAL BACKING ON A GRANULAR FLUORESCENT SCREEN WHICH COMPRISES THE STEPS OF APPLYING SUFFICIENT WATER TO THE SCREEN TO FILL THE INTERGRANULAR SPACES, COVERING THE SCREEN AND WATER WITH A LAYER OF A SOLUTION OF WATER-INSOLUBLE SYNTHETIC HEAT REMOVABLE RESIN IN A VOLATILE NON-AQUEOUS SOLVENT TO A THICKNESS IN THE ORDER OF 500 TO 10,000 ANGSTROM UNITS, EVAPORATING THE SOLVENT TO CAUSE THE RESIN TO SET, DEPOSITING A THIN LAYER OF METAL ON THE RESIN BY VAPORIZING THE METAL AND BAKING THE SCREEN AT A TEMPERATURE IN THE ORDER OF 400* C. TO REMOVE THE RESIN AND COMPLETE THE METAL BACKED FLUORESCENT SCREEN.
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) | 1955-05-20 | 1955-11-19 | 1956-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-20 | 1959-11-19 | 1960-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-20 | 1963-11-19 | 1964-05-20 | $7700.00 | Window Closed / Lapsed |