← Back to Patent Explorer
FR371856A Expired / Lapsed FR ⏱️ 0.0 years remaining

Perpetual calendar fountain pen

Assignee: RAOUL de la PERRELLE
•
Filing: 1906-11-28
•
Granted: 1907-03-18
•
Expires: 1926-11-28
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Raoul De La Perrelle

Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-11-03 05:11
CPC Classifications
B; B43; B43K; B43K29/00; B43K29/08; B43K29/087; B43K29/0875

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.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag