FR813730A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Electric feedthrough, especially for oil filling devices
Assignee: Hydrawerk AG
•
Filing: 1936-11-18
•
Granted: 1937-06-08
•
Expires: 1956-11-18
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-25 14:59
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/02; H01F27/04
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.