Patent US2863084A successfully refreshed from Google Patents.
US2863084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode-ray device
Assignee: Westinghouse Electric Corp
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Filing: 1955-06-27
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Granted: 1958-12-02
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Expires: 1975-06-27
Abstract
No abstract record available.
Inventors
- 👤 Edward G F Arnott
- 👤 Henry F Ivey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:12
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/18; H01J29/182
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A CATHODE-RAY DEVICE COMPRISING, A SCREEN COMPRISING FINELY DIVIDED PHOSPHOR MATERIAL OF ONE OF THE GROUP CONSISTING OF ZINC SULFIDE AND ZINC-CADMIUM SULFIDE AND ACTIVATED BY ONE OF THE GROUP CONSISTING OF MANGANESE AND MANGANESE-SILVER, MEANS FOR APPLYING AN ALTERNATING ELECTRIC FIELD ACROSS SAID PHOSPHOR SCREEN, AND MEANS FOR
Claim 2
Dependent Claim
49 words
A CATHODE-RAY DEVICE COMPRISING, A SCREEN COMPRISING FINELY DIVIDED PHOSPHOR MATERIAL OF ONE OF THE GROUP CONSISTING OF ZINC SULFIDE AND ZINC-CADMIUM SULFIDE AND ACTIVATED BY ONE OF THE GROUP CONSISTING OF MANGANESE AND MANGANESE-SILVER, MEANS FOR APPLYING AN ALTERNATING ELECTRIC FIELD ACROSS SAID PHOSPHOR SCREEN, AND MEANS FOR
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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) | 1961-12-01 | 1962-06-02 | 1962-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-01 | 1966-06-02 | 1966-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-01 | 1970-06-02 | 1970-12-02 | $7700.00 | Window Closed / Lapsed |