FR561904A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements made to voltage regulators, particularly with a view to compensating for variations due to the heating of these devices
Assignee: Compagnie Francaise Thomson Houston SA
•
Filing: 1923-02-07
•
Granted: 1923-10-30
•
Expires: 1943-02-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-04 06:59
CPC Classifications
H; H02; H02P; H02P9/00; H02P9/14; H02P9/24
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.