Patent DE732985C successfully refreshed from Google Patents.
← Back to Patent Explorer
DE732985C Expired / Lapsed DE ⏱️ 0.0 years remaining

Method and device for the watertight impregnation of paper webs used to produce paper bags

Assignee: MARTIN FRERES FA
•
Filing: 1941-02-05
•
Granted: 1943-03-17
•
Expires: 1961-02-05
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

No inventors recorded.

Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-11-07 10:54
CPC Classifications
B; B31; B31B; B31B50/00; B31B70/00; B31B70/74; B31B70/79; B31B50/74; B31B50/742

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