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US3052564A Expired / Lapsed US ⏱️ 0.0 years remaining

Printing with magnetic ink

Assignee: International Business Machines Corp
•
Filing: 1957-02-26
•
Granted: 1962-09-04
•
Expires: 1977-02-26
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Abstract

No abstract record available.

Inventors

  • 👤 Kulesza Frank William

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 10:32
CPC Classifications
G; G06; G06K; G06K19/00; G06K19/06; G06K19/06187; G06K19/06196; G03; G03G; G03G9/00; G03G9/08; G03G9/0825; G03G9/083; G03G9/0831; G03G9/0832; G03G9/0837; G06K1/00; G06K1/12; G06K1/121; G06K1/125; G06K15/00; G06K15/02; G06K15/14; G11; G11B; G11B5/00; G11B5/62; G11B5/68; G11B5/70; G11B5/84; G11B5/855; Y; Y10; Y10S; Y10S101/00; Y10S101/37

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1820194A Cited
US2297691A Cited
US2436829A Cited
US2547838A Cited
US2573881A Cited
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US2650024A Cited
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US2884348A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1965-09-03 1966-03-05 1966-09-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1969-09-03 1970-03-05 1970-09-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1973-09-03 1974-03-05 1974-09-04 $7700.00 Window Closed / Lapsed

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