DE385442C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Fountain pen
Assignee: LOUIS ROMAIN DUREIGNE
•
Filing: 1922-05-12
•
Granted: 1923-11-23
•
Expires: 1942-05-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-23 16:23
CPC Classifications
B; B43; B43K; B43K5/00; B43K5/02; B43K5/06
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.