FR699748A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Device for maintaining constant the intensity of a current
Assignee: Koninklijke Philips NV
•
Filing: 1930-07-30
•
Granted: 1931-02-19
•
Expires: 1950-07-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-25 06:02
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/08
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.