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US3034667A Expired / Lapsed US ⏱️ 0.0 years remaining

Retractable elevator for grain bin

Assignee: Unisys Corp
•
Filing: 1959-12-11
•
Granted: 1962-05-15
•
Expires: 1979-12-11
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Abstract

No abstract record available.

Inventors

  • 👤 Charles M Kline
  • 👤 Jr William Hobbs

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 11:10
CPC Classifications
B; B65; B65G; B65G3/00; B65G3/04

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US402522A Cited
US434082A Cited
US834710A Cited
US893620A Cited
US1510546A Cited
US2661089A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1965-05-14 1965-11-13 1966-05-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1969-05-14 1969-11-13 1970-05-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1973-05-14 1973-11-13 1974-05-15 $7700.00 Window Closed / Lapsed

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