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US3068479A Expired / Lapsed US ⏱️ 0.0 years remaining

Electrographic recording apparatus

Assignee: Unisys Corp
•
Filing: 1958-05-09
•
Granted: 1962-12-11
•
Expires: 1978-05-09
📄 Original PDF 🌐 Google Patents

Abstract

No abstract record available.

Inventors

  • 👤 Robert E Benn
  • 👤 Richard S Howell
  • 👤 Richard S Sakurai

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 11:22
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G03G15/32; G03G15/321; G03G15/325; Y; Y10; Y10S; Y10S101/00; Y10S101/37

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2143214A Cited
US2830867A Cited
US2716048A Cited
US2898468A Cited
US2930847A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1965-12-10 1966-06-11 1966-12-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1969-12-10 1970-06-11 1970-12-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1973-12-10 1974-06-11 1974-12-11 $7700.00 Window Closed / Lapsed

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