← Back to Patent Explorer
BE590935A Expired / Lapsed BE ⏱️ 0.0 years remaining

Method for optical bleaching of paper

Assignee: Gevaert Photo Prod Nv
•
Filing: 1960-05-18
•
Granted: —
•
Expires: 1980-05-18
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Hendrik Adolf Pattyn
  • 👤 Willem Karel Koerber

Bibliographic Details

Application Number —
Jurisdiction BE
Data Source google_patents
Last Synchronized 2026-10-28 11:38
CPC Classifications
A; A23; A23B; A23B4/00; A23B4/06; A23B4/066; A23B4/068; D; D21; D21H; D21H21/00; D21H21/14; D21H21/30; G; G03; G03C; G03C1/00; G03C1/76; G03C1/775; G03C1/815; G03C1/8155; G03C5/00; G03C5/26; G03C5/29; G03C5/305; Y; Y10; Y10S; Y10S430/00; Y10S430/134

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