CA469018A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Substituted 4-hydroxyalkylamino-1,8-naphthalic acid imides
Assignee: Wyeth Holdings LLC
•
Filing: —
•
Granted: 1950-10-31
•
Expires: 1967-10-31
Abstract
No abstract record available.
Inventors
- 👤 Scalera Mario
- 👤 Willard Joyce Asa
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-10-29 17:05
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.