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US2432789A Expired / Lapsed US ⏱️ 0.0 years remaining

Cathode assembly

Assignee: Jacques Kreisler Manufacturing Corp
•
Filing: 1945-06-18
•
Granted: 1947-12-16
•
Expires: 1965-06-18
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Abstract

No abstract record available.

Inventors

  • 👤 O'larte Rudolph
  • 👤 Speck Kurt

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 10:01
CPC Classifications
H; H01; H01J; H01J1/00; H01J1/02; H01J1/13; H01J1/20

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1797990A Cited
GB432970A Cited
US2391780A Cited
US2393057A Cited
US2386790A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1950-12-15 1951-06-16 1951-12-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1954-12-15 1955-06-16 1955-12-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1958-12-15 1959-06-16 1959-12-16 $7700.00 Window Closed / Lapsed

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