Patent US3277237A successfully refreshed from Google Patents.
US3277237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing cathode ray tube using photoconductive layer
Assignee: TDK Micronas GmbH
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Filing: 1963-11-29
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Granted: 1966-10-04
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Expires: 1983-11-29
Abstract
No abstract record available.
Inventors
- 👤 Lozure G Wolfgang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:31
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/02; H01J31/06; H01J31/065
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
125 words
A PRINTING CATHODE RAY TUBE COMPRISING: FACEPLATE MEANS; MEANS FOR GENERATING AN ELECTRON BEAM AND FOR DIRECTING THE SAME ONTO SAID FACEPLATE MEANS, MEANS FOR MODULATING SAID BEAM IN RESPONSE TO AN ELECTRICAL SIGNAL; AND MEANS FOR DEFLECTING SAID BEAM THEREBY TO SCAN THE SAME OVER SAID FACEPLATE MEANS; A LAYER OF PHOSPHOR MATERIAL ON THE INNER SURFACE OF SAID FACEPLATE MEANS AND IMPINGED BY SAID BEAM WHEREBY AN OPTICAL IMAGE IS PROVIDED IN RESPONSE TO SAID BEAM; A TRANSPARENT CONDUCTIVE LAYER ON THE OUTER SURFACE OF SAID FACEPLATE MEANS; AND A LAYER OF PHOTOCONDUCTIVE MATERIAL ON SAID TRANSPARENT CONDUCTIVE LAYER, SAID TRANSPARENT CONDUCTIVE LAYER TRANSMITTING SAID OPTICAL IMAGE TO SAID PHOTOCONDUCTIVE LAYER FOR VARYING THE INCREMENTAL RESISTANCE THEREOF IN RESPONSE TO SAID OPTICAL IMAGE.
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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |