Patent US3343024A successfully refreshed from Google Patents.
US3343024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode ray tube with improved shadow mask mounting spring arrangement
Assignee: National Video Corp
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Filing: 1964-11-25
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Granted: 1967-09-19
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Expires: 1984-11-25
Abstract
No abstract record available.
Inventors
- 👤 James A Torrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:48
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/06; H01J29/07; H01J29/073
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
A CATHODE RAY TUBE OF THE SHADOW MASK TYPE, INCLUDING IN COMBINATION, A RECTANGULAR FACEPLATE PANEL HAVING DEPENDING SIDE WALLS SURROUNDING A FACE AREA, A SHADOW MASK STRUCTURE TO BE POSITIONED IN SPACED RELATION FROM SAID FACE AREA, AT LEAST THREE FLAT SPRINGS INCLUDING FIRST AND SECOND SIDE SPRINGS, EACH HAVING AN END SECURED TO SAID SHADOW MASK STRUCTURE AND AN APERTURED FREE END, SAID SPRINGS BEING SPACED ABOUT THE PERIPHERY OF SAID SHADOW MASK STRUCTURE AND EXTENDING GENERALLY IN A DIRECTION PARALLEL TO SAID FACE AREA, THE FREE END OF ONE OF SAID SPRINGS EXTENDING IN A DIRECTION OPPOSITE TO THAT OF THE OTHER TWO OF SAID SPRINGS ABOUT THE PERIPHERY OF SAID SHADOW MASK STRUCTURE AND RETAINING MEANS CARRIED BY SAID SIDE WALLS TO ENGAGE SAID APERTURES OF SAID SPRINGS FOR REMOVABLY RETAINING SAID SHADOW MASK STRUCTURE WITHIN SAID FACEPLATE PANEL, SAID RETAINING MEANS FOR SAID FIRST AND SECOND SIDE SPRINGS BEING DISPLACED FROM THE HORIZONTAL CENTER LINE OF SAID FACEPLATE.
Claim 2
Dependent Claim
163 words
A CATHODE RAY TUBE OF THE SHADOW MASK TYPE, INCLUDING IN COMBINATION, A RECTANGULAR FACEPLATE PANEL HAVING DEPENDING SIDE WALLS SURROUNDING A FACE AREA, A SHADOW MASK STRUCTURE TO BE POSITIONED IN SPACED RELATION FROM SAID FACE AREA, AT LEAST THREE FLAT SPRINGS INCLUDING FIRST AND SECOND SIDE SPRINGS, EACH HAVING AN END SECURED TO SAID SHADOW MASK STRUCTURE AND AN APERTURED FREE END, SAID SPRINGS BEING SPACED ABOUT THE PERIPHERY OF SAID SHADOW MASK STRUCTURE AND EXTENDING GENERALLY IN A DIRECTION PARALLEL TO SAID FACE AREA, THE FREE END OF ONE OF SAID SPRINGS EXTENDING IN A DIRECTION OPPOSITE TO THAT OF THE OTHER TWO OF SAID SPRINGS ABOUT THE PERIPHERY OF SAID SHADOW MASK STRUCTURE AND RETAINING MEANS CARRIED BY SAID SIDE WALLS TO ENGAGE SAID APERTURES OF SAID SPRINGS FOR REMOVABLY RETAINING SAID SHADOW MASK STRUCTURE WITHIN SAID FACEPLATE PANEL, SAID RETAINING MEANS FOR SAID FIRST AND SECOND SIDE SPRINGS BEING DISPLACED FROM THE HORIZONTAL CENTER LINE OF SAID FACEPLATE.
References Cited (Backward Citations)
US2846608A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |