DE352848C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Loose-leaf binders with flexible strings
Assignee: Robert Hesse & Co
•
Filing: 1921-04-30
•
Granted: 1922-05-06
•
Expires: 1941-04-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-04 15:51
CPC Classifications
B; B42; B42F; B42F13/00; B42F13/02; B42F13/06; B42F13/08
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.