Patent US2745772A successfully refreshed from Google Patents.
US2745772A
Expired / Lapsed
US
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Manufacture of mosaic screens such as are utilized in television transmission tubes
Assignee: EMI Ltd
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Filing: 1951-02-15
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Granted: 1956-05-15
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Expires: 1971-02-15
Abstract
No abstract record available.
Inventors
- 👤 Cassman Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:20
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/43; H01J9/00; H01J9/20; H01J9/233; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24917; Y10T428/24926
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
92 words
A METHOD OF MANUFACTURING A MOSAIC ELECTRODE SUCH AS UTILIZED IN TELEVISION PICK-UP TUBES, COMPRISING THE STEPS OF COATING ONE SURFACE OF A DIELECTRIC SUPPORT WITH A CAESIUM RESISTANT METAL OXIDE FILM, MOUNTING A STENCIL MESH IN FRONT OF THE COATED SURFACE OF SAID SUPPORT, DEPOSITING METAL THROUGH SAID STENCIL TO PROVIDE A MULTIPLICITY OF CONDUCTIVE ELEMENTS ON SAID COATING, MOVING THE STENCIL MESH AWAY FROM SAID SURFACE, AND THEREAFTER EXPOSING THE CONDUCTIVE ELEMENTS AND THE PARTS OF THE SAID COATING BETWEEN SAID ELEMENTS TO CAESIUM AND OXYGEN TO SENSITIZE SAID ELEMENTS.
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) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |