CA1034331A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Formation of hollow articles
Assignee: National Research Council Canada
•
Filing: 1974-12-03
•
Granted: 1978-07-11
•
Expires: 1994-12-03
Abstract
No abstract record available.
Inventors
- 👤 Ira E. Puddington
- 👤 Joseph R. Farnand
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-10-25 20:27
CPC Classifications
B; B01; B01J; B01J13/00; B01J13/02; B01J13/20; B01J13/203; Y; Y10; Y10S; Y10S376/00; Y10S376/916
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.