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US1885155A Expired / Lapsed US ⏱️ 0.0 years remaining

Control of constant current circuits

Assignee: General Electric Co
•
Filing: 1932-02-18
•
Granted: 1932-11-01
•
Expires: 1952-02-18
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Abstract

No abstract record available.

Inventors

  • 👤 Chauncey G Suits

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 12:25
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/32

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) 1935-11-01 1936-05-02 1936-11-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1939-11-01 1940-05-02 1940-11-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1943-11-01 1944-05-02 1944-11-01 $7700.00 Window Closed / Lapsed

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