US3247412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color television tube screen having strip interruptions for reducing perceptibleness of stripe structure
Assignee: US Philips Corp
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Filing: 1962-03-02
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Granted: 1966-04-19
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Expires: 1982-03-02
Abstract
No abstract record available.
Inventors
- 👤 Evert Jan Van Barneveld
- 👤 Haan Edward Fokko De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:20
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/18; H01J29/30; H01J29/32; H01J29/325
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A COLOR TELEVISION TUBE COMPRISING AN IMAGE SCREEN, SAID IMAGE SCREEN COMPRISING A SUPPORTING MEMBER OF TRANSPARENT MATERIAL HAVING A PLURALITY OF PARALLEL PHOSPHOR STRIPES EACH OF GIVEN WIDTH WHICH ON ELECTRON EXCITATION EMIT LIGHT OF DIFFERENT COLORS, SAID STRIPES BEING IN A RECURRENT PATTERN SO THAT ADJACENT STRIPS WHEN LUMINESCING EMIT LIGHT OF DIFFERENT COLORS, AT LEAST THOSE STRIPES WHICH EMIT LIGHT TO WHICH THE EYE IS MOST SENSITIVE HAVING A PLURALITY OF NON-LUMINESCENT PORTIONS EACH OF GIVEN LENGTH AND SPACED APART A GIVEN DISTANCE WHICH INTERRUPT THE STRIPE AT SUCCESSIVE INTERVALS, THE NUMBER OF NON-LUMI-
Claim 2
Dependent Claim
97 words
A COLOR TELEVISION TUBE COMPRISING AN IMAGE SCREEN, SAID IMAGE SCREEN COMPRISING A SUPPORTING MEMBER OF TRANSPARENT MATERIAL HAVING A PLURALITY OF PARALLEL PHOSPHOR STRIPES EACH OF GIVEN WIDTH WHICH ON ELECTRON EXCITATION EMIT LIGHT OF DIFFERENT COLORS, SAID STRIPES BEING IN A RECURRENT PATTERN SO THAT ADJACENT STRIPS WHEN LUMINESCING EMIT LIGHT OF DIFFERENT COLORS, AT LEAST THOSE STRIPES WHICH EMIT LIGHT TO WHICH THE EYE IS MOST SENSITIVE HAVING A PLURALITY OF NON-LUMINESCENT PORTIONS EACH OF GIVEN LENGTH AND SPACED APART A GIVEN DISTANCE WHICH INTERRUPT THE STRIPE AT SUCCESSIVE INTERVALS, THE NUMBER OF NON-LUMI-
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) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |