CH288444A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Hole punch for documents to be placed in letter folders.
Assignee: Bollmann Karl
•
Filing: 1950-08-17
•
Granted: —
•
Expires: 1970-08-17
Abstract
No abstract record available.
Inventors
- 👤 Bollmann Karl
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-11-08 12:53
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/32; B26F1/36; B42; B42F; B42F13/00; B42F13/40; B42F13/404
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.