DE499545C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Measuring and recording device, in particular for monitoring the purity and composition of gases and gas mixtures
Assignee: Siemens and Halske AG
•
Filing: 1929-04-10
•
Granted: 1930-06-10
•
Expires: 1949-04-10
Abstract
No abstract record available.
Inventors
- 👤 Dr Hans Gerdien
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-23 07:35
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/41; G01N21/45
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.