Patent US3440080A successfully refreshed from Google Patents.
US3440080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode ray tube color screen and method of producing same
Assignee: Sony Corp
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Filing: 1966-06-30
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Granted: 1969-04-22
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Expires: 1986-06-30
Abstract
No abstract record available.
Inventors
- 👤 Michio Tamura
- 👤 Mitsuyoshi Nakamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:19
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/18; H01J29/187; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24364; Y10T428/24802; Y10T428/24893; Y10T428/24901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
THE METHOD OF MANUFACTURING A GIVEN COLOR-EMITTING PHOSPHOR ELEMENT OF FOR USE IN A PATTERN ON A LUMINESCENT SCREEN CONTAINING A PLURALITY OF DIFFERENT COLOR-EMITTING PHOSPHOR ELEMENTS IN PREDETERMINED MATCHING ILLUMINANTS IN A SELECTIVE PATTERN ON AN INNER SURFACE OF SAID SCREEN, COMPRISING FORMING A FIRST COATING ON THE INNER SURFACE OF SAID SCREEN, SAID COATING PREDOMINANTLY CONTAINING A PHOSPHOR MATERIAL THAT SUBSTANTIALLY EMITS A GREATER GIVEN COLOR INTENSITY THAN THAT MATCHED BY SAID DIFFERENT PHOSPHOR ELEMENTS, FORMING A SECOND COATING OF A PREDOMINANTLY LUMINANCE CONTROL MATERIAL SUBSTANTIALLY COEXTENSIVELY SUPERIMPOSED ON SAID FIRST COATING TO EFFECT COOPERATION WITH SAID FIRST COATING A RESULTANT LUMINANCE THAT IS MATCHED IN PREDETERMINED LUMINANCE BY SAID DIFFERENT PHOSPHOR ELEMENTS.
Claim 2
Independent Claim
115 words
THE METHOD OF MANUFACTURING A GIVEN COLOR-EMITTING PHOSPHOR ELEMENT OF FOR USE IN A PATTERN ON A LUMINESCENT SCREEN CONTAINING A PLURALITY OF DIFFERENT COLOR-EMITTING PHOSPHOR ELEMENTS IN PREDETERMINED MATCHING ILLUMINANTS IN A SELECTIVE PATTERN ON AN INNER SURFACE OF SAID SCREEN, COMPRISING FORMING A FIRST COATING ON THE INNER SURFACE OF SAID SCREEN, SAID COATING PREDOMINANTLY CONTAINING A PHOSPHOR MATERIAL THAT SUBSTANTIALLY EMITS A GREATER GIVEN COLOR INTENSITY THAN THAT MATCHED BY SAID DIFFERENT PHOSPHOR ELEMENTS, FORMING A SECOND COATING OF A PREDOMINANTLY LUMINANCE CONTROL MATERIAL SUBSTANTIALLY COEXTENSIVELY SUPERIMPOSED ON SAID FIRST COATING TO EFFECT COOPERATION WITH SAID FIRST COATING A RESULTANT LUMINANCE THAT IS MATCHED IN PREDETERMINED LUMINANCE BY SAID DIFFERENT PHOSPHOR ELEMENTS.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |