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US2764321A Expired / Lapsed US ⏱️ 0.0 years remaining

Fertilizer distributor with adjustable gate control and force feed means to insure discharge of fertilizer

Assignee: Individual
•
Filing: 1953-12-21
•
Granted: 1956-09-25
•
Expires: 1973-12-21
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Abstract

No abstract record available.

Inventors

  • 👤 Rionold E Gerdes
  • 👤 Paul T Rewerts

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 14:31
CPC Classifications
A; A01; A01C; A01C15/00; A01C15/12

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US570490A Cited
US1016766A Cited
US1210636A Cited
US2017759A Cited
US2369508A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1959-09-25 1960-03-26 1960-09-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1963-09-25 1964-03-26 1964-09-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1967-09-25 1968-03-26 1968-09-25 $7700.00 Window Closed / Lapsed

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