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US2588744A Expired / Lapsed US ⏱️ 0.0 years remaining

Automatic electric space-discharge material removal method and apparatus

Assignee: Elox Corp
•
Filing: 1946-11-09
•
Granted: 1952-03-11
•
Expires: 1966-11-09
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Abstract

No abstract record available.

Inventors

  • 👤 Ian C Mckechnie

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 10:26
CPC Classifications
B; B23; B23H; B23H7/00; B23H7/14; B23H7/18

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1712114A Cited
US1571924A Cited
US1701372A Cited
US2024965A Cited
GB394028A Cited
GB410494A Cited
US2427588A Cited
US2385665A Cited
US2399212A Cited
US2495038A Cited
US2526423A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1955-03-11 1955-09-10 1956-03-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1959-03-11 1959-09-10 1960-03-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1963-03-11 1963-09-10 1964-03-11 $7700.00 Window Closed / Lapsed

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