Patent FR868091A successfully refreshed from Google Patents.
FR868091A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Transformers for Class B Balanced Amplifiers
Assignee: Telefunken AG
•
Filing: 1940-12-13
•
Granted: 1941-12-15
•
Expires: 1960-12-13
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-25 15:16
CPC Classifications
H; H01; H01F; H01F19/00; H01F19/02
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.