Patent US4220744A successfully refreshed from Google Patents.
Patent FR1129142A successfully refreshed from Google Patents.
← Back to Patent Explorer
FR1129142A Expired / Lapsed FR ⏱️ 0.0 years remaining

Protective tip for retractable ballpoint pens

Assignee: Robert-Leon Bacou
•
Filing: 1955-07-16
•
Granted: 1957-01-16
•
Expires: 1975-07-16
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Robert-Leon Bacou

Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-11-09 16:26
CPC Classifications
B; B43; B43K; B43K7/00; B43K7/12

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