Patent US2525448A successfully refreshed from Google Patents.
← Back to Patent Explorer
US2525448A Expired / Lapsed US ⏱️ 0.0 years remaining

Phase indicating instrument

Assignee: General Electric Co
•
Filing: 1945-09-01
•
Granted: 1950-10-10
•
Expires: 1965-09-01
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Varro J Clarke

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 11:21
CPC Classifications
G; G01; G01R; G01R25/00

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

GB411100A Cited
US1984545A Cited
US2085595A Cited
US2225348A Cited
US2221517A Cited
US2217477A Cited
US2518161A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1953-10-09 1954-04-10 1954-10-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1957-10-09 1958-04-10 1958-10-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1961-10-09 1962-04-10 1962-10-10 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag