Patent CA964867A successfully refreshed from Google Patents.
CA964867A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Leaching sulfide concentrates
Assignee: Vale Canada Ltd
•
Filing: 1972-05-08
•
Granted: 1975-03-25
•
Expires: 1992-05-08
Abstract
No abstract record available.
Inventors
- 👤 Peter J.M. Ryan
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-08 04:53
CPC Classifications
C; C22; C22B; C22B3/00; C22B3/04; C22B3/06; C22B23/00; C22B23/04; C22B23/0407; Y; Y02; Y02P; Y02P10/00; Y02P10/20
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.