Patent DE439152C successfully refreshed from Google Patents.
DE439152C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Mechanical drive device for writing and similar machines
Assignee: Joh Winklhofer Beteiligungs GmbH and Co KG
•
Filing: 1923-10-17
•
Granted: 1927-01-06
•
Expires: 1943-10-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-26 16:45
CPC Classifications
B; B41; B41J; B41J23/00; B41J23/02; B41J23/04
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.