DE643520C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
High-voltage DC machine with a stationary armature and a stationary commutator, but a rotating pole wheel
Assignee: ELEK ZITAETS WERKE ZU AACHENI
•
Filing: 1934-12-20
•
Granted: 1937-04-10
•
Expires: 1954-12-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-06 13:23
CPC Classifications
H; H02; H02K; H02K23/00; H02K23/62
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.