← Back to Patent Explorer
FR894223A Expired / Lapsed FR ⏱️ 0.0 years remaining

DC or AC cut-off device

Assignee: Koninklijke Philips NV
•
Filing: 1943-04-23
•
Granted: 1944-12-18
•
Expires: 1963-04-23
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

No inventors recorded.

Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-10-22 22:23
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/48; B01D53/50; B01D53/507; H; H01; H01H; H01H9/00; H01H9/54

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.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag