Patent US3344301A successfully refreshed from Google Patents.
US3344301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Subtractive type color cathode ray tube having overlapping color phosphor areas
Assignee: Rauland Borg Corp
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Filing: 1966-07-25
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Granted: 1967-09-26
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Expires: 1986-07-25
Abstract
No abstract record available.
Inventors
- 👤 Sam H Kaplan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:19
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/18; H01J29/30; H01J29/32; H01J29/322; H04; H04N; H04N9/00; H04N9/12; H04N9/16; H04N9/22; H04N9/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
IN A SINGLE-BEAM SUBSTRACTIVE TYPE COLOR CATHODERAY TUBE HAVING A MOSAIC IMAGE SCREEN COMPRISING A MULTITUDE OF SIMILAR CLUSTERS OF ELEMENTAL PHOSPHOR AREAS AND A COLOR-SELECTION ELECTRODE IN JUXTAPOSITION WITH SAID SCREEN AND COMPRISING A SIMILAR MULTIUDE OF APERTURES ALIGNED WITH SAID CLUSTERS, THE IMPROVEMENT WHICH IS CHARACTERIZED BY THE FACT THAT EACH OF SAID CLUSTERS IS CHARACTERIZED BY THE FACT THAT EACH OF SAID CLUSTERS IS HAVING AN AREA SMALL COMPARED TO THE CROSS SECTIONAL AREA OF SAID BEAM AND EACH OF WHICH EXHIBITS A DIFFERENT COLOR RADIATION IN RESPONSE TO IMPINGEMENT BY SAID BEAM AND AT LEAST ONE SECONDARY AREA OF PHOSPHOR DEPOSIT INTERPOSED BETWEEN SAID PRIMARY AREAS, SAID SECONDARY AREAS COLLECTIVELY EXHIBITING AN APPROXIMATELY WHITE RADIATION IN RESPONSE TO IMPINGEMENT BY SAID BEAM.
Claim 2
Dependent Claim
126 words
IN A SINGLE-BEAM SUBSTRACTIVE TYPE COLOR CATHODERAY TUBE HAVING A MOSAIC IMAGE SCREEN COMPRISING A MULTITUDE OF SIMILAR CLUSTERS OF ELEMENTAL PHOSPHOR AREAS AND A COLOR-SELECTION ELECTRODE IN JUXTAPOSITION WITH SAID SCREEN AND COMPRISING A SIMILAR MULTIUDE OF APERTURES ALIGNED WITH SAID CLUSTERS, THE IMPROVEMENT WHICH IS CHARACTERIZED BY THE FACT THAT EACH OF SAID CLUSTERS IS CHARACTERIZED BY THE FACT THAT EACH OF SAID CLUSTERS IS HAVING AN AREA SMALL COMPARED TO THE CROSS SECTIONAL AREA OF SAID BEAM AND EACH OF WHICH EXHIBITS A DIFFERENT COLOR RADIATION IN RESPONSE TO IMPINGEMENT BY SAID BEAM AND AT LEAST ONE SECONDARY AREA OF PHOSPHOR DEPOSIT INTERPOSED BETWEEN SAID PRIMARY AREAS, SAID SECONDARY AREAS COLLECTIVELY EXHIBITING AN APPROXIMATELY WHITE RADIATION IN RESPONSE TO IMPINGEMENT BY SAID BEAM.
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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |