FR842689A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Method and apparatus for moving and transporting electric charges
Assignee: Oleg Yadoff
•
Filing: 1938-02-21
•
Granted: 1939-06-16
•
Expires: 1958-02-21
Abstract
No abstract record available.
Inventors
- 👤 Oleg Yadoff
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-30 13:45
CPC Classifications
H; H02; H02N; H02N3/00
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.