Patent DE678248C successfully refreshed from Google Patents.
DE678248C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Arrangement for the excitation of alternators by a part of the generated alternating current which is converted into direct current by means of a static rectifier
Assignee: G Duesterloh GmbH
•
Filing: 1935-03-26
•
Granted: 1939-07-12
•
Expires: 1955-03-26
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-03 18:36
CPC Classifications
H; H02; H02K; H02K19/00; H02K19/16; H02K19/26; H02K19/28
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.