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US1876290A Expired / Lapsed US ⏱️ 0.0 years remaining

Work handling device

Assignee: HANNA ENGINEERING WORKS
•
Filing: 1928-12-24
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Granted: 1932-09-06
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Expires: 1948-12-24
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Abstract

No abstract record available.

Inventors

  • 👤 John C Hanna

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 23:09
CPC Classifications
B; B21; B21J; B21J15/00; B21J15/10; B21J15/38; B21J15/46; Y; Y10; Y10S; Y10S414/00; Y10S414/124; Y10T; Y10T29/00; Y10T29/53; Y10T29/53709; Y10T29/5377; Y10T29/53774; Y10T29/53778

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) 1935-09-06 1936-03-07 1936-09-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1939-09-06 1940-03-07 1940-09-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1943-09-06 1944-03-07 1944-09-06 $7700.00 Window Closed / Lapsed

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