Patent AT148882B successfully refreshed from Google Patents.
Patent US4862501A successfully refreshed from Google Patents.
Patent CA826431A successfully refreshed from Google Patents.
CA826431A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Bulkhead
Assignee: Individual
•
Filing: —
•
Granted: 1969-11-04
•
Expires: 1986-11-04
Abstract
No abstract record available.
Inventors
- 👤 B. Severson Sylvester
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-10-25 11:09
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.