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US1864507A Expired / Lapsed US ⏱️ 0.0 years remaining

Tip for flexible drive shafts

Assignee: Delco Electronics LLC
•
Filing: 1928-04-30
•
Granted: 1932-06-21
•
Expires: 1948-04-30
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Abstract

No abstract record available.

Inventors

  • 👤 Pineau Auguste

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 11:08
CPC Classifications
F; F16; F16C; F16C1/00; F16C1/02; F16C1/08; F16C2370/00; Y; Y10; Y10T; Y10T403/00; Y10T403/49; Y10T403/4974; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/20462

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) 1935-06-21 1935-12-21 1936-06-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1939-06-21 1939-12-21 1940-06-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1943-06-21 1943-12-21 1944-06-21 $7700.00 Window Closed / Lapsed

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