Patent DE563740C successfully refreshed from Google Patents.
← Back to Patent Explorer
DE563740C Expired / Lapsed DE ⏱️ 0.0 years remaining

Keyboard for accordions

Assignee: ALWIN RUDOLF SEIDEL
•
Filing: —
•
Granted: 1932-11-09
•
Expires: 1949-11-09
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

No inventors recorded.

Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-10-26 10:32
CPC Classifications
G; G10; G10D; G10D11/00; G10D11/02

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