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US2701974A Expired / Lapsed US ⏱️ 0.0 years remaining

Change speed gearing

Assignee: M AND W PATENTS Ltd
•
Filing: 1950-02-08
•
Granted: 1955-02-15
•
Expires: 1970-02-08
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Abstract

No abstract record available.

Inventors

  • 👤 Albert A Miller

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 20:14
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/02; F16H61/0293; F16H2718/00; F16H2718/02; F16H2718/04

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US918258A Cited
US1428659A Cited
US1909607A Cited
US2022058A Cited
US2136971A Cited
US2371564A Cited
US2370131A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1958-02-14 1958-08-16 1959-02-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1962-02-14 1962-08-16 1963-02-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1966-02-14 1966-08-16 1967-02-15 $7700.00 Window Closed / Lapsed

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