Patent DE646530C successfully refreshed from Google Patents.
DE646530C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Method for duplicating writing, images, or the like.
Assignee: OTTO KANOLD
•
Filing: 1930-08-01
•
Granted: 1937-06-16
•
Expires: 1950-08-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-31 23:33
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/025; B41M5/03
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.