FR797172A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to electrical signaling systems
Assignee: Thales SA
•
Filing: 1935-01-21
•
Granted: 1936-04-22
•
Expires: 1955-01-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-23 16:08
CPC Classifications
H; H04; H04L; H04L21/00
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.