FR655907A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Variable secondary electro-motive force transformer
Assignee: Pathe Cinema SA
•
Filing: 1927-10-28
•
Granted: 1929-04-25
•
Expires: 1947-10-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-27 06:16
CPC Classifications
H; H01; H01F; H01F29/00; H01F29/08; H01F29/12
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.