FR871385A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to removable sheet binders
Assignee: RELIURE SPIRALE
•
Filing: 1941-04-05
•
Granted: 1942-04-22
•
Expires: 1961-04-05
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-27 12:04
CPC Classifications
B; B42; B42F; B42F3/00; B42F3/003; B42B; B42B5/00; B42B5/08; B42B5/12
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.