FR1069881A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Incandescent spark plug
Assignee: Beru Werk Albert Ruprecht GmbH and Co KG
•
Filing: 1953-01-15
•
Granted: 1954-07-13
•
Expires: 1973-01-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-26 21:48
CPC Classifications
F; F23; F23Q; F23Q7/00; F23Q7/001
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.