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US2255690A Expired / Lapsed US ⏱️ 0.0 years remaining

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Assignee: BAE Systems Aerospace Inc
•
Filing: 1935-10-22
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Granted: 1941-09-09
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Expires: 1955-10-22
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Abstract

No abstract record available.

Inventors

  • 👤 Harold A Wheeler

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 10:04
CPC Classifications
H; H03; H03G; H03G5/00; H03G5/16; H03G5/24; H03G5/26

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1944-09-08 1945-03-10 1945-09-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1948-09-08 1949-03-10 1949-09-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1952-09-08 1953-03-10 1953-09-09 $7700.00 Window Closed / Lapsed

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