CA1009775A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Stepwise treatment of aqueous wastes to form solid silicates
Assignee: ONTARIO LIQUID WASTE DISPOSAL Ltd
•
Filing: 1972-12-19
•
Granted: 1977-05-03
•
Expires: 1992-12-19
Abstract
No abstract record available.
Inventors
- 👤 David Krofchak
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-07 16:29
CPC Classifications
C; C04; C04B; C04B18/00; C04B18/04; C04B18/0418; C02; C02F; C02F11/00; C02F11/008; C04B28/00; C04B28/24; C04B28/26; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/91
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.