Patent DE57020C successfully refreshed from Google Patents.
DE425009C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Interlocking lock
Assignee: Individual
•
Filing: 1923-01-31
•
Granted: 1926-02-09
•
Expires: 1943-01-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-31 12:42
CPC Classifications
E; E05; E05B; E05B67/00; E05B67/36
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.