DE830406C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Reinforced concrete ceiling beams
Assignee: Individual
•
Filing: 1950-04-09
•
Granted: 1952-02-04
•
Expires: 1970-04-09
Abstract
No abstract record available.
Inventors
- 👤 Hermann Kuhlmann
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-01 19:14
CPC Classifications
E; E04; E04C; E04C3/00; E04C3/02; E04C3/20; E04C3/22
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.