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US2526384A Expired / Lapsed US ⏱️ 0.0 years remaining

Machine having free pistons and cylinders without mechanical connecting-rod-crank couplings

Assignee: MOORE Inc
•
Filing: 1947-08-01
•
Granted: 1950-10-17
•
Expires: 1967-08-01
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Abstract

No abstract record available.

Inventors

  • 👤 Mercier Ernest

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 16:28
CPC Classifications
F; F02; F02B; F02B71/00; F01; F01B; F01B11/00

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

DE269252C Cited
US1263972A Cited
US1757215A Cited
US2075133A Cited
US2265285A Cited
US2112368A Cited
US2189497A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1953-10-16 1954-04-17 1954-10-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1957-10-16 1958-04-17 1958-10-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1961-10-16 1962-04-17 1962-10-17 $7700.00 Window Closed / Lapsed

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