DE585748C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Loudspeaker built into a housing
Assignee: Telefunken AG
•
Filing: —
•
Granted: 1933-10-09
•
Expires: 1950-10-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-06 08:58
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/02; H04R1/021
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.