Patent US4566853A successfully refreshed from Google Patents.
AT95937B
Expired / Lapsed
AT
⏱️ 0.0 years remaining
Collapsible head protection.
Assignee: Heinrich Wimmersperg
•
Filing: 1923-03-06
•
Granted: 1924-02-11
•
Expires: 1943-03-06
Abstract
No abstract record available.
Inventors
- 👤 Heinrich Wimmersperg
Bibliographic Details
Application Number
—
Jurisdiction
AT
Data Source
google_patents
Last Synchronized
2026-11-04 03:02
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/32; A42B3/322
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.