Patent US5380220A successfully refreshed from Google Patents.
Patent CH99536A successfully refreshed from Google Patents.
CH99536A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Ink eraser.
Assignee: Zuercher Albert
•
Filing: 1921-11-19
•
Granted: —
•
Expires: 1941-11-19
Abstract
No abstract record available.
Inventors
- 👤 Zuercher Albert
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-11-04 07:35
CPC Classifications
B; B43; B43L; B43L17/00; B43L17/06; B43L17/08
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.