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US1404538A Expired / Lapsed US ⏱️ 0.0 years remaining

Spindle cooling and lubricating means

Assignee: Webster & Perks Tool Co
•
Filing: 1920-08-16
•
Granted: 1922-01-24
•
Expires: 1940-08-16
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Abstract

No abstract record available.

Inventors

  • 👤 Raymond C Mitchell

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 09:12
CPC Classifications
F; F16; F16C; F16C3/00; F16C3/04; F16C3/06; F16C3/16; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/10; F16C33/1025; F16C33/1045; F16C33/1055; F16C37/00; F16C2322/00; F16C2322/39

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) 1925-01-23 1925-07-25 1926-01-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1929-01-23 1929-07-25 1930-01-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1933-01-23 1933-07-25 1934-01-24 $7700.00 Window Closed / Lapsed

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