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US3566482A Expired / Lapsed US ⏱️ 0.0 years remaining

Educational device

Assignee: Data Plex Systems Inc
•
Filing: 1968-10-24
•
Granted: 1971-03-02
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Expires: 1988-10-24
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Abstract

Abstract THE DEVICE GENERATES A GROUP OF SIGNALS REPRESENTING A PLURALITY OF ITEMS OF INFORMATION ARRANGED TO FORM A COMPOSITE PICTURE ON THE CATHODE RAY TUBE OF A REMOTE RECEIVER. THE RECEIVER INCLUDES SWITCHES FOR SELECTING PORTIONS OF THE COMPOSITE PICTURE FOR DISPLAY.

Inventors

  • 👤 Charles A Morchand

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 06:10
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/002; G; G09; G09B; G09B7/00; G09B7/06

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) 1974-03-01 1974-08-31 1975-03-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-03-01 1978-08-31 1979-03-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-03-01 1982-08-31 1983-03-02 $7700.00 Window Closed / Lapsed

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