← Back to Patent Explorer
DE53599C Expired / Lapsed DE ⏱️ 0.0 years remaining

Springy pencil sharpener

Assignee: M. ABRAMOWITZ in Fellin, Livland, Kaufstr. 47
•
Filing: 1890-03-30
•
Granted: 1890-09-15
•
Expires: 1910-03-30
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 M Abramovitz

Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-11-01 19:02
CPC Classifications
B; B43; B43L; B43L23/00; B43L23/08

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.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag