FR568529A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Underground and overhead-underground telephone network with sub-distribution
Assignee: Jean Granier
•
Filing: 1923-07-10
•
Granted: 1924-03-28
•
Expires: 1943-07-10
Abstract
No abstract record available.
Inventors
- 👤 Jean Granier
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-05 12:23
CPC Classifications
H; H02; H02G; H02G15/00; H02G15/02; H02G15/06; H02G15/076
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.