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US2434467A Expired / Lapsed US ⏱️ 0.0 years remaining

Electric heating system for ovens

Assignee: Motors Liquidation Co
•
Filing: 1940-02-17
•
Granted: 1948-01-13
•
Expires: 1960-02-17
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Abstract

No abstract record available.

Inventors

  • 👤 Francis H Mccormick

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 15:44
CPC Classifications
F; F24; F24C; F24C7/00; F24C7/08

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1849922A Cited
US1816866A Cited
US2203236A Cited
US2260840A Cited
US2218778A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1951-01-12 1951-07-14 1952-01-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1955-01-12 1955-07-14 1956-01-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1959-01-12 1959-07-14 1960-01-13 $7700.00 Window Closed / Lapsed

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