FR986834A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Process for acting on the cathode beam of a television tube in order to ensure its secrecy
Assignee: S E D A C SOC
•
Filing: 1949-03-22
•
Granted: 1951-08-06
•
Expires: 1969-03-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-29 12:27
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/16; H04N7/167; H04N7/169
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.