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Assignee: SAMUEL P HUTCHISON
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Filing: 1916-12-06
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Granted: 1918-02-19
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Expires: 1936-12-06
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Abstract

No abstract record available.

Inventors

  • 👤 Daniel F Duck

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 18:18
CPC Classifications
G; G09; G09F; G09F13/00; G09F13/04; G09F13/0404

Claims Analysis

Total Claims: 0
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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) 1921-02-18 1921-08-20 1922-02-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1925-02-18 1925-08-20 1926-02-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1929-02-18 1929-08-20 1930-02-19 $7700.00 Window Closed / Lapsed

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