DE403068C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Spark chamber for electrical air switches
Assignee: BBC BROWN BOVERI and CIE
•
Filing: 1923-05-15
•
Granted: 1924-09-26
•
Expires: 1943-05-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-06 06:23
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/30; H01H9/34
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.