DE489338C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Adjustable anti-skid device consisting of sole and heel part
Assignee: MAX WILLIGALLA
•
Filing: —
•
Granted: 1930-01-17
•
Expires: 1947-01-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-25 13:47
CPC Classifications
A; A43; A43C; A43C15/00; A43C15/06
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.