US3071706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plural beam cathode ray tube
Assignee: Individual
•
Filing: 1956-11-21
•
Granted: 1963-01-01
•
Expires: 1976-11-21
Abstract
No abstract record available.
Inventors
- 👤 Waldorf Adrian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:49
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/48; H01J29/50; H01J2231/00; H01J2231/12; H01J2231/125; H01J2231/1255
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A CATHODE RAY TUBE COMPRISING AN ENVELOPE HAVING A CONTINUOUS LUMINESCENT SCREEN SUBSTANTIALLY RECTANGULAR IN ELEVATION, AT LEAST FOUR ELECTRON-STEAM-EMITTING CATHODES SUPPORTED WITHIN SAID ENVELOPES, AND HORIZONTAL AND VERTICAL DEFLECTING MEANS INDEPENDENTLY CONTROLLING THE ELECTRON STREAM OF EACH OF SAID CATHODES FOR DIRECTING EACH SAID ELECTRON STREAM OVER A FRACTIONAL PORTION OF SAID SCREEN CONTIGUOUS TO AT LEAST TWO SIMILAR PORTIONS PRODUCED BY THE STREAMS OF CATHODES ADJACENT THERETO, SAID CATHODES BEING ARRANGED IN A GRID PATTERN OF PARALLEL ROWS EACH CONTAINING AT LEAST TWO CATHODES, AND PARALLEL COLUMNS PERPENDICULAR TO SAID ROWS AND EACH CONTAINING AT LEAST TWO CATHODES, AND PARTITION MEANS SEPARATING SAID CATHODES AND EXTENDING ENTIRELY ACROSS SAID ENVELOPE TO POINTS CLOSELY ADJACENT SAID SCREEN.
Claim 2
Dependent Claim
118 words
A CATHODE RAY TUBE COMPRISING AN ENVELOPE HAVING A CONTINUOUS LUMINESCENT SCREEN SUBSTANTIALLY RECTANGULAR IN ELEVATION, AT LEAST FOUR ELECTRON-STEAM-EMITTING CATHODES SUPPORTED WITHIN SAID ENVELOPES, AND HORIZONTAL AND VERTICAL DEFLECTING MEANS INDEPENDENTLY CONTROLLING THE ELECTRON STREAM OF EACH OF SAID CATHODES FOR DIRECTING EACH SAID ELECTRON STREAM OVER A FRACTIONAL PORTION OF SAID SCREEN CONTIGUOUS TO AT LEAST TWO SIMILAR PORTIONS PRODUCED BY THE STREAMS OF CATHODES ADJACENT THERETO, SAID CATHODES BEING ARRANGED IN A GRID PATTERN OF PARALLEL ROWS EACH CONTAINING AT LEAST TWO CATHODES, AND PARALLEL COLUMNS PERPENDICULAR TO SAID ROWS AND EACH CONTAINING AT LEAST TWO CATHODES, AND PARTITION MEANS SEPARATING SAID CATHODES AND EXTENDING ENTIRELY ACROSS SAID ENVELOPE TO POINTS CLOSELY ADJACENT SAID SCREEN.
References Cited (Backward Citations)
US2219149A
Cited
CH210628A
Cited
GB573226A
Cited
GB575962A
Cited
GB597947A
Cited
US2472889A
Cited
US2602903A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |