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US2259110A Expired / Lapsed US ⏱️ 0.0 years remaining

Concrete placement apparatus

Assignee: Individual
•
Filing: 1939-11-30
•
Granted: 1941-10-14
•
Expires: 1959-11-30
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Abstract

No abstract record available.

Inventors

  • 👤 Jackson Corwill

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 21:39
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/22; E01C19/30; E01C19/34; E01C19/40; E01C19/407

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) 1944-10-13 1945-04-14 1945-10-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1948-10-13 1949-04-14 1949-10-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1952-10-13 1953-04-14 1953-10-14 $7700.00 Window Closed / Lapsed

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