Patent DE813664C successfully refreshed from Google Patents.
DE813664C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Window stay
Assignee: Individual
•
Filing: 1949-10-20
•
Granted: 1951-09-17
•
Expires: 1969-10-20
Abstract
No abstract record available.
Inventors
- 👤 Heinrich Papenberg
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-07 21:32
CPC Classifications
E; E05; E05C; E05C17/00; E05C17/02; E05C17/04; E05C17/08; E05C17/085; E05C17/12; E05C17/24; E05C17/28
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE507186C
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.