Patent CA654427A successfully refreshed from Google Patents.
CA654427A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Process for the removal of nitrogen oxides from so2 and/or so3-containing gases
Assignee: VEB FARBENFABRIK WOLFEN
•
Filing: —
•
Granted: 1962-12-18
•
Expires: 1979-12-18
Abstract
No abstract record available.
Inventors
- 👤 Wolf Friedrich
- 👤 Huhn Johannes
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-01 08:20
CPC Classifications
—
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.