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US2768481A Expired / Lapsed US ⏱️ 0.0 years remaining

Belt sander attachment

Assignee: Individual
•
Filing: 1954-08-13
•
Granted: 1956-10-30
•
Expires: 1974-08-13
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Abstract

No abstract record available.

Inventors

  • 👤 Paul R Thomasco

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 19:24
CPC Classifications
B; B24; B24B; B24B21/00

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US561557A Cited
US1153479A Cited
US2218874A Cited
GB641403A Cited
CH280746A Cited
US2612007A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1959-10-30 1960-04-30 1960-10-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1963-10-30 1964-04-30 1964-10-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1967-10-30 1968-04-30 1968-10-30 $7700.00 Window Closed / Lapsed

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