DE643772C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Switch with arc extinguishing by flowing compressed gas
Assignee: Individual
•
Filing: 1934-02-21
•
Granted: 1937-04-16
•
Expires: 1954-02-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-04 06:51
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/53; H01H33/56
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.