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US2468408A Expired / Lapsed US ⏱️ 0.0 years remaining

Calculating machine

Assignee: Unisys Corp
•
Filing: 1941-09-03
•
Granted: 1949-04-26
•
Expires: 1961-09-03
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Abstract

No abstract record available.

Inventors

  • 👤 Raca Ernest

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 18:22
CPC Classifications
G; G06; G06C; G06C11/00

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1800865A Cited
US2055522A Cited
US2055525A Cited
US2074026A Cited
US1199228A Cited
US1302161A Cited
US1853050A Cited
US1913510A Cited
US2026020A Cited
US2022823A Cited
US2267885A Cited
US2251097A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1952-04-25 1952-10-25 1953-04-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1956-04-25 1956-10-25 1957-04-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1960-04-25 1960-10-25 1961-04-26 $7700.00 Window Closed / Lapsed

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