DE676506C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Device for cleaning the support surface of metallic seals on door frames of chamber stoves
Assignee: Dr C Otto and Co GmbH
•
Filing: 1937-12-25
•
Granted: 1939-06-05
•
Expires: 1957-12-25
Abstract
No abstract record available.
Inventors
- 👤 Dr-Ing Carl Otto
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-05 08:39
CPC Classifications
C; C10; C10B; C10B43/00; C10B43/02; C10B43/04
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.