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US2196002A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of treating electro-deposited metal

Assignee: Copperweld Steel Co
•
Filing: 1938-06-13
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Granted: 1940-04-02
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Expires: 1958-06-13
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Abstract

No abstract record available.

Inventors

  • 👤 Leslie C Whitney
  • 👤 John A Heidish

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 18:34
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/48; C25D5/50; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998; Y10T29/49982; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12903; Y10T428/12917

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) 1943-04-02 1943-10-02 1944-04-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1947-04-02 1947-10-02 1948-04-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1951-04-02 1951-10-02 1952-04-02 $7700.00 Window Closed / Lapsed

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