Patent CA674328A successfully refreshed from Google Patents.
CA674328A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Construction units and methods of making the same
Assignee: F AND D M HEWITT Ltd
•
Filing: —
•
Granted: 1963-11-19
•
Expires: 1980-11-19
Abstract
No abstract record available.
Inventors
- 👤 Hewitt Frank
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-10-26 12:59
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.