DE699705C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Pit stamp
Assignee: Individual
•
Filing: 1939-03-05
•
Granted: 1940-12-04
•
Expires: 1959-03-05
Abstract
No abstract record available.
Inventors
- 👤 Dr-Ing Arnold Haarmann
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-27 19:21
CPC Classifications
E; E21; E21D; E21D15/00; E21D15/02; E21D15/06; E21D15/12
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.