DE550575C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Process for the production of printing forms by tanning in writing or image, tanning or destroying colloid layers by electrochemical means
Assignee: KARL SCHINZEL DR
•
Filing: 1928-05-24
•
Granted: 1932-05-12
•
Expires: 1948-05-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-05 10:56
CPC Classifications
B; B41; B41C; B41C1/00; B41C1/10; B41C1/1008
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.