US2661304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing mosaic screens for use in television transmitting tubes
Assignee: EMI Ltd
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Filing: 1948-07-24
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Granted: 1953-12-01
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Expires: 1968-07-24
Abstract
No abstract record available.
Inventors
- 👤 Sommer Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:08
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/43
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A METHOD OF MANUFACTURING A MOSAIC SCREEN OF THE KIND COMPRISING DISCRETE METALLIC ELEMENTS AND SUITABLE FOR USE IN A TELEVISION TRANSMISSION TUBE, COMPRISING THE STEPS OF FORMING ON AN INSULATING SUPPORT A THIN LAYER IN A SOLID STATE OF ANTIMONY TRISULPHIDE IN A QUANTITY PREDETERMINED TO PRODUCE A MULTIPLICITY OF DISCRETE ELEMENTS OF ANTIMONY UPON REDUCTION OF THE TRISULPHIDE, AND THEREAFER HEATING SAID LAYER AND EXPOSING THE HEATED LAYER TO HYDROGEN TO REDUCE THE ANTIMONY TRISULPHIDE TO A MULTIPLICITY OF DISCRETE ELEMENTS OF ANTIMONY.
Claim 2
Independent Claim
85 words
A METHOD OF MANUFACTURING A MOSAIC SCREEN OF THE KIND COMPRISING DISCRETE METALLIC ELEMENTS AND SUITABLE FOR USE IN A TELEVISION TRANSMISSION TUBE, COMPRISING THE STEPS OF FORMING ON AN INSULATING SUPPORT A THIN LAYER IN A SOLID STATE OF ANTIMONY TRISULPHIDE IN A QUANTITY PREDETERMINED TO PRODUCE A MULTIPLICITY OF DISCRETE ELEMENTS OF ANTIMONY UPON REDUCTION OF THE TRISULPHIDE, AND THEREAFER HEATING SAID LAYER AND EXPOSING THE HEATED LAYER TO HYDROGEN TO REDUCE THE ANTIMONY TRISULPHIDE TO A MULTIPLICITY OF DISCRETE ELEMENTS OF ANTIMONY.
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) | 1956-11-30 | 1957-06-01 | 1957-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-30 | 1961-06-01 | 1961-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-30 | 1965-06-01 | 1965-12-01 | $7700.00 | Window Closed / Lapsed |