Patent US2428926A successfully refreshed from Google Patents.
Patent DE723185C successfully refreshed from Google Patents.
DE723185C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Flow electrode for polarographic analysis
Assignee: LEOPOLD WILHELM HETTICH
•
Filing: 1940-03-06
•
Granted: 1942-07-31
•
Expires: 1960-03-06
Abstract
No abstract record available.
Inventors
- 👤 Leopold Wilhelm Hettich
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-23 21:57
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/48
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.