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US1853443A Expired / Lapsed US ⏱️ 0.0 years remaining

Record card with printed index points

Assignee: Tabulating Machine Co
•
Filing: 1927-07-01
•
Granted: 1932-04-12
•
Expires: 1947-07-01
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Abstract

No abstract record available.

Inventors

  • 👤 Maul Michael

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 22:58
CPC Classifications
G; G06; G06V; G06V30/00; G06V30/10; G06V30/22; G06V30/224

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1935-04-12 1935-10-12 1936-04-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1939-04-12 1939-10-12 1940-04-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1943-04-12 1943-10-12 1944-04-12 $7700.00 Window Closed / Lapsed

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