← Back to Patent Explorer
BE765977A Expired / Lapsed BE ⏱️ 0.0 years remaining

Industrial waste gas purification filter

Assignee: Schreurs Stephanus J
•
Filing: 1971-04-20
•
Granted: —
•
Expires: 1991-04-20
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Apparatus for purifying industrial fume and gases, comprises (a) at least one element formed from at least one layer of glass wool through which the gases are drawn; (b) at least one layer consisting of soda-impregnated, dried, relatively small granules of open cell structure material; and (c) at least one layer of dried, soda-impregnated and open cell structure wood charcoal.

Inventors

No inventors recorded.

Bibliographic Details

Application Number —
Jurisdiction BE
Data Source google_patents
Last Synchronized 2026-11-03 13:29
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34

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