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US2116927A Expired / Lapsed US ⏱️ 0.0 years remaining

Electrical discharge device

Assignee: Individual
•
Filing: 1937-04-13
•
Granted: 1938-05-10
•
Expires: 1957-04-13
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Abstract

No abstract record available.

Inventors

  • 👤 Germer Edmund

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 16:42
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/04; H01J61/06; H01J61/067; H01J61/0672; Y; Y10; Y10S; Y10S29/00; Y10S29/012; Y10S29/044; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/929; Y10S428/9335; Y10S428/934; Y10S428/935; Y10T; Y10T428/00; Y10T428/12; Y10T428/12333; Y10T428/12458; Y10T428/12465; Y10T428/12479; Y10T428/12493; Y10T428/12535; Y10T428/12611; Y10T428/12618

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) 1941-05-09 1941-11-08 1942-05-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1945-05-09 1945-11-08 1946-05-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1949-05-09 1949-11-08 1950-05-10 $7700.00 Window Closed / Lapsed

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