DE690442C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Compressed gas switch
Assignee: Umicore NV SA
•
Filing: 1937-04-30
•
Granted: 1940-04-25
•
Expires: 1957-04-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-29 16:46
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/12; H01H1/36; H01H1/38; H01H1/385; H01H33/00; H01H33/02; H01H33/04; H01H33/16
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.