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US2211583A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of making electric condensers and condensers made thereby

Assignee: Individual
•
Filing: 1939-12-13
•
Granted: 1940-08-13
•
Expires: 1959-12-13
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Abstract

No abstract record available.

Inventors

  • 👤 Ruben Samuel

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 18:56
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/005; H01G4/008; Y; Y10; Y10S; Y10S428/00; Y10S428/906; Y10T; Y10T428/00; Y10T428/24; Y10T428/24777; Y10T428/24793; Y10T428/24802; Y10T428/24851; Y10T428/31504; Y10T428/31678; Y10T428/31703; Y10T428/31971

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) 1943-08-13 1944-02-12 1944-08-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1947-08-13 1948-02-12 1948-08-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1951-08-13 1952-02-12 1952-08-13 $7700.00 Window Closed / Lapsed

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