US3198976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric discharge tubes and applications thereof
Assignee: Rank Precision Industries Ltd
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Filing: 1961-04-24
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Granted: 1965-08-03
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Expires: 1981-04-24
Abstract
No abstract record available.
Inventors
- 👤 Arthur T Starr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:19
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/88; G; G09; G09G; G09G1/00; G09G1/20; H01; H01J; H01J31/00; H01J31/08; H01J31/10; H01J31/12; H01J31/128
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
AN ELECTRIC DISCHARGE TUBE COMPRISING A TWO DIMENSIONAL MATRIX OF APERTURES IN AN ELECTRON-IMPERVIOUS MEMBER, ELECTRON-EMITTING MEANS FOR GENERATING AN ELECTRON BEAM OF ADEQUATE CROSS-SECTIONAL AREA TO FLOW SAID MATRIX, AN INDIVIDUAL CONDUCTIVE ANNULUS AROUND EACH APERTURE AND HAVING AN INDIVIDUAL LEAD EXTENDING TO THE OUTSIDE OF THE TUBE FOR THE SELECTIVE APPLICATION THERETO OF A BEAM SWITCHING POTENTIAL, A FIRST ANODE FOR ACCELERATING ELEMENTAL ELECTRON BEAMS DEFINED THROUGH SAID APERTURES, AND RECEIVING MEANS POSITIONED TO BE IMPINGED UPON BY THE ELEMENTAL ELECTRON BEAMS.
Claim 2
Dependent Claim
84 words
AN ELECTRIC DISCHARGE TUBE COMPRISING A TWO DIMENSIONAL MATRIX OF APERTURES IN AN ELECTRON-IMPERVIOUS MEMBER, ELECTRON-EMITTING MEANS FOR GENERATING AN ELECTRON BEAM OF ADEQUATE CROSS-SECTIONAL AREA TO FLOW SAID MATRIX, AN INDIVIDUAL CONDUCTIVE ANNULUS AROUND EACH APERTURE AND HAVING AN INDIVIDUAL LEAD EXTENDING TO THE OUTSIDE OF THE TUBE FOR THE SELECTIVE APPLICATION THERETO OF A BEAM SWITCHING POTENTIAL, A FIRST ANODE FOR ACCELERATING ELEMENTAL ELECTRON BEAMS DEFINED THROUGH SAID APERTURES, AND RECEIVING MEANS POSITIONED TO BE IMPINGED UPON BY THE ELEMENTAL ELECTRON BEAMS.
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) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |