Patent CA847218A successfully refreshed from Google Patents.
CA847218A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Alkaline sulfite pulping
Assignee: International Paper Canada Inc
•
Filing: —
•
Granted: 1970-07-21
•
Expires: 1987-07-21
Abstract
No abstract record available.
Inventors
- 👤 Otto V. Ingruber
- 👤 Glenn A. Allard
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-09 05:36
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.