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US2444042A Expired / Lapsed US ⏱️ 0.0 years remaining

Electrically operated calculating apparatus for converting numbers from binary to decimal form

Assignee: STC PLC
•
Filing: 1943-07-12
•
Granted: 1948-06-29
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Expires: 1963-07-12
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Abstract

No abstract record available.

Inventors

  • 👤 Hartley George Clifford
  • 👤 Gould John Ridd
  • 👤 Haigh Leslie Baines

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 16:45
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/40

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

GB410129A Cited
US2191567A Cited
US2318591A Cited
US2364540A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1951-06-29 1951-12-29 1952-06-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1955-06-29 1955-12-29 1956-06-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1959-06-29 1959-12-29 1960-06-29 $7700.00 Window Closed / Lapsed

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