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US2323478A Expired / Lapsed US ⏱️ 0.0 years remaining

Electric heating pad

Assignee: Individual
•
Filing: 1941-05-03
•
Granted: 1943-07-06
•
Expires: 1961-05-03
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Abstract

No abstract record available.

Inventors

  • 👤 Lobl Frederick

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 15:05
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/20; H05B3/34; H05B3/342; H05B2203/00; H05B2203/002; H05B2203/014; H05B2203/017; H05B2203/032

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1946-07-05 1947-01-04 1947-07-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1950-07-05 1951-01-04 1951-07-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1954-07-05 1955-01-04 1955-07-06 $7700.00 Window Closed / Lapsed

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