CA931447A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Impregnation of corrugated board
Assignee: International Paper Canada Inc
•
Filing: 1970-11-18
•
Granted: 1973-08-07
•
Expires: 1990-11-18
Abstract
No abstract record available.
Inventors
- 👤 Claude C. Jr. Hayes
- 👤 Hal W. Jr. Tanner
- 👤 Charles M. Arian
- 👤 H. Mahler Hans
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-04 17:11
CPC Classifications
D; D21; D21H; D21H23/00; D21H23/02; D21H23/22; D21H23/66; D21H23/68
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.