Patent US1003766A successfully refreshed from Google Patents.
Patent CA1018774A successfully refreshed from Google Patents.
CA1018774A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Continuous production of ferric sulphate
Assignee: General Mining and Finance Corp Ltd
•
Filing: 1974-01-30
•
Granted: 1977-10-11
•
Expires: 1994-01-30
Abstract
No abstract record available.
Inventors
- 👤 Eric L. Goldblatt
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-08 13:19
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.