Patent US3082341A successfully refreshed from Google Patents.
US3082341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve for the projection of digits and characters for counters and computers
Assignee: US Philips Corp
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Filing: 1959-02-10
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Granted: 1963-03-19
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Expires: 1979-02-10
Abstract
No abstract record available.
Inventors
- 👤 Balaskovic Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:19
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/10; H01J31/12; H01J31/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
AN ELECTRON DISCHARGE TUBE FOR THE PROJECTION OF DIGITS AND CHARACTERS FOR COMPUTERS AND COUNTERS, WHICH COMPRISES AN ENVELOPE, A CATHODE FOR PRODUCING A BEAM OF PRIMARY ELECTRONS, A FLUORESCENT SCREEN, MEANS ARRANGED BETWEEN SAID CATHODE AND SAID SCREEN FOR PRODUCING A PLURALITY OF BEAMS EACH HAVING A CROSS-SECTION CORRESPONDING TO A CHARACTER, AND FOCUSSING MEANS FOR CONCENTRATING SAID CHARACTER-SHAPED BEAMS ONTO THE FLUORESCENT SCREEN, SAID MEANS FOR PRODUCING THE CHARACTERSHAPED BEAMS BEING ARRANGED AT RIGHT ANGLES TO THE SAID BEAM OF PRIMARY ELECTRONS AND COMPRISING A CONDUCTIVE ANODE HAVING PERFORMATIONS CORRESPONDING TO THE CHARACTERS AND A MEMBER WHICH CONTROLS THE ELECTRON CURRENT, SAID CONTROL MEMBER COMPRISING A PLURALITY OF GRIDS EACH POSITIONED TO CONTROL THE ELECTRON CURRENT PASSING THROUGH ONE OF SAID ANODE PERFORATIONS WITH A POTENTIAL APPLIED THERETO.
Claim 2
Dependent Claim
130 words
AN ELECTRON DISCHARGE TUBE FOR THE PROJECTION OF DIGITS AND CHARACTERS FOR COMPUTERS AND COUNTERS, WHICH COMPRISES AN ENVELOPE, A CATHODE FOR PRODUCING A BEAM OF PRIMARY ELECTRONS, A FLUORESCENT SCREEN, MEANS ARRANGED BETWEEN SAID CATHODE AND SAID SCREEN FOR PRODUCING A PLURALITY OF BEAMS EACH HAVING A CROSS-SECTION CORRESPONDING TO A CHARACTER, AND FOCUSSING MEANS FOR CONCENTRATING SAID CHARACTER-SHAPED BEAMS ONTO THE FLUORESCENT SCREEN, SAID MEANS FOR PRODUCING THE CHARACTERSHAPED BEAMS BEING ARRANGED AT RIGHT ANGLES TO THE SAID BEAM OF PRIMARY ELECTRONS AND COMPRISING A CONDUCTIVE ANODE HAVING PERFORMATIONS CORRESPONDING TO THE CHARACTERS AND A MEMBER WHICH CONTROLS THE ELECTRON CURRENT, SAID CONTROL MEMBER COMPRISING A PLURALITY OF GRIDS EACH POSITIONED TO CONTROL THE ELECTRON CURRENT PASSING THROUGH ONE OF SAID ANODE PERFORATIONS WITH A POTENTIAL APPLIED THERETO.
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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |