Patent US3327149A successfully refreshed from Google Patents.
US3327149A
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Cathode-ray tube with beam-shaping barriers, each having a plurality of shaping apertures and a nonshaping aperture
Assignee: Stromberg Carlson Corp
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Filing: 1964-11-03
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Granted: 1967-06-20
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Expires: 1984-11-03
Abstract
No abstract record available.
Inventors
- 👤 Charles R Corpew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:03
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/10; H01J31/12; H01J31/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
IN A SHAPED-BEAM CATHODE-RAY TUBE, AN ELECTRON GUN FOR GENERATING AND PROJECTING AN ELECTRON BEAM ALONG A BEAM PATH, FIRST AND SECOND BEAM SHAPING BARRIERS POSITIONED IN TANDEM ALONG SAID BEAM PATH EACH HAVING A PLURALITY OF CHARACTER-SHAPED APERTURES FORMED THEREIN FOR SHAPING THE ELECTRON BEAM GENERATED BY SAID ELECTRON GUN AND A NON-CHARACTER-SHAPING APERTURE AND SELECTION MEANS FOR EFFECTING INTERCEPTION OF SAID ELECTRON BEAM BY A CHARACTER-SHAPED APERTURE IN ONLY ONE OF SAID FIRST AND SECOND BEAM SHAPING BARRIERS.
Claim 2
Dependent Claim
80 words
IN A SHAPED-BEAM CATHODE-RAY TUBE, AN ELECTRON GUN FOR GENERATING AND PROJECTING AN ELECTRON BEAM ALONG A BEAM PATH, FIRST AND SECOND BEAM SHAPING BARRIERS POSITIONED IN TANDEM ALONG SAID BEAM PATH EACH HAVING A PLURALITY OF CHARACTER-SHAPED APERTURES FORMED THEREIN FOR SHAPING THE ELECTRON BEAM GENERATED BY SAID ELECTRON GUN AND A NON-CHARACTER-SHAPING APERTURE AND SELECTION MEANS FOR EFFECTING INTERCEPTION OF SAID ELECTRON BEAM BY A CHARACTER-SHAPED APERTURE IN ONLY ONE OF SAID FIRST AND SECOND BEAM SHAPING BARRIERS.
References Cited (Backward Citations)
US2495738A
Cited
US2981861A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |