Patent US2649227A successfully refreshed from Google Patents.
Patent DE370388C successfully refreshed from Google Patents.
DE370388C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Pneumatically operated electrical switch
Assignee: Rheinmetall Air Defence AG
•
Filing: —
•
Granted: 1923-03-02
•
Expires: 1940-03-02
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-03 13:55
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/28; H01H33/30; H01H33/32
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.