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US2961981A Expired / Lapsed US ⏱️ 0.0 years remaining

Planter

Assignee: G H NELSON
•
Filing: 1957-10-08
•
Granted: 1960-11-29
•
Expires: 1977-10-08
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Abstract

No abstract record available.

Inventors

  • 👤 Amous H Sooter

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 00:59
CPC Classifications
A; A01; A01C; A01C7/00; A01C7/20; A01C7/201

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1318365A Cited
US1030244A Cited
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GB229111A Cited
US1635866A Cited
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US2400522A Cited
US2524083A Cited
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US2601834A Cited
US2650103A Cited
US2815964A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1963-11-29 1964-05-30 1964-11-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1967-11-29 1968-05-30 1968-11-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1971-11-29 1972-05-30 1972-11-29 $7700.00 Window Closed / Lapsed

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