FR897086A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Tuned circuits for ultra-short waves
Assignee: Robert Grandin
•
Filing: 1943-04-02
•
Granted: 1945-03-12
•
Expires: 1963-04-02
Abstract
No abstract record available.
Inventors
- 👤 Robert Grandin
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-28 12:42
CPC Classifications
H; H01; H01F; H01F21/00; H01F21/005; H01P; H01P7/00; H01P7/02
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.