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US2584302A Expired / Lapsed US ⏱️ 0.0 years remaining

Electric heating device

Assignee: Individual
•
Filing: 1950-04-06
•
Granted: 1952-02-05
•
Expires: 1970-04-06
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Abstract

No abstract record available.

Inventors

  • 👤 Stein Shachno

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 16:41
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/20; H05B3/34; H05B3/342; H05B2203/00; H05B2203/002; H05B2203/003; H05B2203/036

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1594053A Cited
US1758213A Cited
US1997899A Cited
US2032294A Cited
US2294010A Cited
US2277772A Cited
US2323478A Cited
US2342744A Cited
US2467447A Cited
US2411677A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1955-02-04 1955-08-06 1956-02-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1959-02-04 1959-08-06 1960-02-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1963-02-04 1963-08-06 1964-02-05 $7700.00 Window Closed / Lapsed

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