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US2199548A Expired / Lapsed US ⏱️ 0.0 years remaining

Accounting machine

Assignee: International Business Machines Corp
•
Filing: 1934-11-22
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Granted: 1940-05-07
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Expires: 1954-11-22
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Abstract

No abstract record available.

Inventors

  • 👤 Adelbert C Maby
  • 👤 Thomas A Gavin
  • 👤 Torkel E Torkelson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 18:57
CPC Classifications
—

Claims Analysis

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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) 1943-05-07 1943-11-06 1944-05-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1947-05-07 1947-11-06 1948-05-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1951-05-07 1951-11-06 1952-05-07 $7700.00 Window Closed / Lapsed

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