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US2538908A Expired / Lapsed US ⏱️ 0.0 years remaining

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Assignee: Individual
•
Filing: 1948-05-10
•
Granted: 1951-01-23
•
Expires: 1968-05-10
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Abstract

No abstract record available.

Inventors

  • 👤 Eugene H Mckeehan

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 17:04
CPC Classifications
A; A47; A47F; A47F5/00; A47F5/0043; A47F5/005

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US332524A Cited
US567003A Cited
US699976A Cited
US807757A Cited
US992047A Cited
GB191304990A Cited
US1414130A Cited
US1555038A Cited
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US2014516A Cited
US2020373A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1954-01-22 1954-07-24 1955-01-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1958-01-22 1958-07-24 1959-01-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1962-01-22 1962-07-24 1963-01-23 $7700.00 Window Closed / Lapsed

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