CH81618A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Letterhead that can be closed without an envelope
Assignee: Hans Fleiner
•
Filing: 1918-10-10
•
Granted: —
•
Expires: 1938-10-10
Abstract
No abstract record available.
Inventors
- 👤 Hans Fleiner
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-10-25 15:07
CPC Classifications
—
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.