FR974739A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Process for the enlargement and reduction of chromo-copies in chromo-electro-photo-mechanical devices
Assignee: Emile Bueno
•
Filing: 1948-11-08
•
Granted: 1951-02-26
•
Expires: 1968-11-08
Abstract
No abstract record available.
Inventors
- 👤 Emile Bueno
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-23 16:54
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/48; H04N1/486; H04N1/50; H04N1/506
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.