FR637984A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Device enabling the reception of transmissions to be reserved for the subscribers of a radiotelegraph or radiotelephone station only, within the perimeter of the same alternating current distribution network
Assignee: Royer
•
Filing: 1926-11-30
•
Granted: 1928-05-12
•
Expires: 1946-11-30
Abstract
No abstract record available.
Inventors
- 👤 Royer
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-02 14:17
CPC Classifications
H; H04; H04K; H04K1/00; H04K1/003
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.