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US2809468A Expired / Lapsed US ⏱️ 0.0 years remaining

Combination plant prop and feeder

Assignee: CREST SPECIALTY
•
Filing: 1953-05-21
•
Granted: 1957-10-15
•
Expires: 1973-05-21
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Abstract

No abstract record available.

Inventors

  • 👤 Eliot Sol

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 01:10
CPC Classifications
A; A01; A01G; A01G27/00; A01G27/006

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US500140A Cited
DE202146C Cited
US1586676A Cited
US1628249A Cited
US1758839A Cited
US2152018A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1960-10-14 1961-04-15 1961-10-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1964-10-14 1965-04-15 1965-10-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1968-10-14 1969-04-15 1969-10-15 $7700.00 Window Closed / Lapsed

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