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US3849693A Expired / Lapsed US ⏱️ 0.0 years remaining

Multiple position display panel having segmented electrodes

Assignee: Unisys Corp
•
Filing: 1972-02-22
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Granted: 1974-11-19
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Expires: 1992-02-22
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Abstract

Abstract 1. A MULTIPLE-POSITION DISPLAY DEVICE COMPRISING A SEALED ENVELOPE HAVING A VIEWING WINDOW AND INCLUDING AN INSULATING BASE PLATE HAVING TOP AND BOTTOM SURFACES, A PLURALITY OF ELONGATED METAL STRIP CONDUCTORS SPACED APART AND SUPPORTED BY A SURFACE OF SAID BASE PLATE, A PLURALITY OF METAL STRIP CATHODE ELECTRODE SEGMENTS SPACED APART ALONG THE LENGTH OF EACH OF SAID ELONGATED METAL STRIP CONDUCTORS, THE CATHODES OF EACH STRIP BEING IDENTICAL IN SIZE AND SHAPE, SAID METAL STRIP CONDUCTORS AND THEIR CATHODE ELECTRODE SEGMENTS BEING FORMED OF A SINGLE PIECE OF METAL, THE CATHODE SEGMENTS BEING POSITIONED SO THAT THEY FORM GROUPS SPACED APART ALONG SAID DEVICE, EACH GROUP COMPRISING A DISPLAY POSITION, AN ANODE ELECTRODE POSITIONED IN OPERATIVE RELATION WITH EACH OF THE GROUPS OF CATHODE SEGMENTS, AND A GASEOUS ATMOSPHERE IN THE REGION ABOUT THE CATHODE SEGMENTS AND THE ANODE ELECTRODES, INCLUDING AN IONIZABLE GAS AT A PRESSURE CAPABLE OF SUSTAINING CATHODE GLOW DISCHARGE.

Inventors

  • 👤 A Somlyody
  • 👤 R Fehnel
  • 👤 S Kuchinsky
  • 👤 A Shesser

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 02:37
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/38; H01J17/48; H01J17/49; H01J17/491

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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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) 1977-11-18 1978-05-20 1978-11-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-11-18 1982-05-20 1982-11-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-11-18 1986-05-20 1986-11-19 $7700.00 Window Closed / Lapsed

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