US3584251A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Camera tube having glass membrane with layer of magnesium oxide and nickel oxide
Assignee: Teledyne UK Ltd
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Filing: 1969-10-16
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Granted: 1971-06-08
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Expires: 1989-10-16
Abstract
Abstract TELEVISION CAMERA CATHODE RAY TUBES OF THE IMAGE ORTHICON TYPE HAVING A THIN, GLASS CHARGE STORING MEMBER WITH A VERY THIN LAYER OF METAL OXIDE DEPLOSITED THEREON. THE COATING OF METAL OXIDE ON THE CHARGE STORING OR TARGET MEMBER GREATLY REDUCES THE DISADVANTAGEOUS EFFECTS OF THE DEPOSITING OF ALKALI METALS ON THE CHARGE STORING MEMBER DURING THE FORMATION OF THE TUBE. THE METHOD OF APPLYING METAL OXIDE TO THE CHARGE STORING MEMBER INCLUDES THE FORMATION OF A PELLET CONTAINING A POWDERED MIX AND BOMBARDING THE PELLET WITH AN ELECTRON BEAM TO PRODUCE COATING BY EVAPORATION OF THE PELLET IN VACUO UNTIL THE REQUIRED COATING THICKNESS IS REACHED.
Inventors
- 👤 Peter Baldwin Banks
- 👤 Hans Scholz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:46
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/41; H01J29/413
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |