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US1931900A Expired / Lapsed US ⏱️ 0.0 years remaining

Automatic lock nut

Assignee: Individual
•
Filing: 1931-06-06
•
Granted: 1933-10-24
•
Expires: 1951-06-06
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Abstract

No abstract record available.

Inventors

  • 👤 John W Mcquaid

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 12:26
CPC Classifications
F; F16; F16J; F16J1/00; F16J1/10; F16J1/12; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/926; Y10S411/927; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32861; Y10T403/32893; Y10T403/32909; Y10T74/00; Y10T74/15; Y10T74/1526

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) 1936-10-23 1937-04-24 1937-10-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1940-10-23 1941-04-24 1941-10-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1944-10-23 1945-04-24 1945-10-24 $7700.00 Window Closed / Lapsed

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