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US2628056A Expired / Lapsed US ⏱️ 0.0 years remaining

Leakproof irrigation valve

Assignee: Individual
•
Filing: 1950-04-10
•
Granted: 1953-02-10
•
Expires: 1970-04-10
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Abstract

No abstract record available.

Inventors

  • 👤 Fuller Revilo

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 17:37
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/02; F16K3/04; F16K3/10; E; E02; E02B; E02B13/00; E02B13/02; Y; Y10; Y10T; Y10T137/00; Y10T137/402; Y10T137/6851; Y10T137/6966; Y10T137/6991; Y10T137/6995; Y10T137/7021

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US164857A Cited
US253318A Cited
US475135A Cited
US522137A Cited
US699891A Cited
US957777A Cited
US1159399A Cited
US1287189A Cited
US1332692A Cited
US1327351A Cited
US1713349A Cited
US1875857A Cited
GB500838A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1956-02-10 1956-08-11 1957-02-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1960-02-10 1960-08-11 1961-02-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1964-02-10 1964-08-11 1965-02-10 $7700.00 Window Closed / Lapsed

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