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US2581001A Expired / Lapsed US ⏱️ 0.0 years remaining

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Assignee: Bryant Grinder Corp
•
Filing: 1947-02-18
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Granted: 1952-01-01
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Expires: 1967-02-18
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Abstract

No abstract record available.

Inventors

  • 👤 Elton S Cornell

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 03:02
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/20; G01B5/204

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US764203A Cited
GB557578A Cited
US2403898A Cited
US2359869A Cited
US2363077A Cited
US2449842A Cited
US2432384A Cited
US2443895A Cited
US2393094A Cited
US2371451A Cited
US2435268A Cited
US2427152A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1954-12-31 1955-07-02 1956-01-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1958-12-31 1959-07-02 1960-01-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1962-12-31 1963-07-02 1964-01-01 $7700.00 Window Closed / Lapsed

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