FR1481969A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Device for increasing the contrast of a television picture
Assignee: Jean Raymond Narbaits-Jaureguy
•
Filing: 1966-01-14
•
Granted: 1967-05-26
•
Expires: 1986-01-14
Abstract
No abstract record available.
Inventors
- 👤 Jean Raymond Narbaits-Jaureguy
- 👤 Jean-Michel Charles Henri Cat
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-06 00:58
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/14; H04N5/20; H04N9/00
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.