Patent DE720750C successfully refreshed from Google Patents.
← Back to Patent Explorer
DE720750C Expired / Lapsed DE ⏱️ 0.0 years remaining

Frequency meter that works with automatic compensation and measures the phase position of the current in an oscillating circuit with respect to the total voltage

Assignee: AEG AG
•
Filing: 1939-01-14
•
Granted: 1942-05-14
•
Expires: 1959-01-14
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Dipl-Ing Erich Kaden

Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-10-29 10:22
CPC Classifications
G; G01; G01R; G01R23/00; G01R23/02

Claims Analysis

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

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag