CA924872A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Removal of sulphur dioxide from waste gas
Assignee: PPG Architectural Coatings Canada Inc
•
Filing: 1970-10-27
•
Granted: 1973-04-24
•
Expires: 1990-10-27
Abstract
No abstract record available.
Inventors
- 👤 M. Davidson Charles
- 👤 R. Deshaies Jacques
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-06 12:09
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/02; C01B17/04; C01B17/0404; C01B17/0426; C01B17/0443; B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/48; B01D53/50; B01J; B01J8/00; B01J8/08; B01J8/12; B01J8/125
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.