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US2297357A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for brazing high carbon steel

Assignee: General Electric Co
•
Filing: 1940-10-19
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Granted: 1942-09-29
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Expires: 1960-10-19
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Abstract

No abstract record available.

Inventors

  • 👤 Floyd C Kelley

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 12:04
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/19; B23K35/00; B23K35/001; B23K35/004

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1945-09-28 1946-03-30 1946-09-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1949-09-28 1950-03-30 1950-09-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1953-09-28 1954-03-30 1954-09-29 $7700.00 Window Closed / Lapsed

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