← Back to Patent Explorer
CA902314A Expired / Lapsed CA ⏱️ 0.0 years remaining

Production of corrugated pipe with mating moulds under vacuum

Assignee: Domtar Inc
•
Filing: 1969-09-05
•
Granted: 1972-06-13
•
Expires: 1989-09-05
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Marc A. Collet

Bibliographic Details

Application Number —
Jurisdiction CA
Data Source google_patents
Last Synchronized 2026-11-05 10:31
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/0015; B29C49/0021; B29C2791/00; B29C2791/004; B29C2791/006; B29C33/00; B29C33/20; B29C33/26; B29C33/34; B29C33/36

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.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag