Patent DE2139447A1 successfully refreshed from Google Patents.
← Back to Patent Explorer
DE2139447A1 Expired / Lapsed DE ⏱️ 0.0 years remaining

Surface-active compounds and a process for their preparation

Assignee: Fa Ugine Kuhlmann, Paris
•
Filing: 1971-08-06
•
Granted: —
•
Expires: 1991-08-06
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Xavier Soisy sur Montmorency Pechmeze Jacques Pierre Edmond Paris Bilger, (Frankreich)

Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-11-02 13:19
CPC Classifications
C; C07; C07C; C07C41/00; C07C41/01; C07C41/02; C07C41/03; C07C41/16

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