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US2895400A Expired / Lapsed US ⏱️ 0.0 years remaining

Grain storage bag

Assignee: CONCORD SUPPLIES AND EQUIPMENT
•
Filing: 1955-05-09
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Granted: 1959-07-21
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Expires: 1975-05-09
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Abstract

No abstract record available.

Inventors

  • 👤 Sam B Topf

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 21:40
CPC Classifications
A; A01; A01F; A01F25/00; A01F25/14; B; B65; B65D; B65D88/00; B65D88/16

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US412161A Cited
US428697A Cited
US1319267A Cited
US2704501A Cited
US1500610A Cited
US2027268A Cited
US2439853A Cited
US2504213A Cited
US2646057A Cited
US2720825A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1962-07-20 1963-01-19 1963-07-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1966-07-20 1967-01-19 1967-07-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1970-07-20 1971-01-19 1971-07-21 $7700.00 Window Closed / Lapsed

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