Patent DE728599C successfully refreshed from Google Patents.
DE728599C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Oxygen breathing device with a reusable piece for the oxygen distribution
Assignee: Auergesellschaft GmbH
•
Filing: 1940-10-06
•
Granted: 1942-11-30
•
Expires: 1960-10-06
Abstract
No abstract record available.
Inventors
- 👤 Otto Weber
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-08 07:35
CPC Classifications
A; A62; A62B; A62B7/00
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.