DE871668C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Process for the production of copies, especially printing forms, with the aid of diazo compounds and material for carrying out the process
Assignee: Kalle GmbH and Co KG
•
Filing: 1950-06-18
•
Granted: 1953-03-26
•
Expires: 1970-06-18
Abstract
No abstract record available.
Inventors
- 👤 Maximilian Paul Dr Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-06 19:32
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/022; G03F7/09; G03F7/095
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.