US2698266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material for treating metal surfaces to improve corrosion resistance and paint bonding ability
Assignee: Henkel Corp
•
Filing: 1951-07-02
•
Granted: 1954-12-28
•
Expires: 1971-07-02
Abstract
No abstract record available.
Inventors
- 👤 James H Thirsk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:11
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/82; C23C22/83
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2563431A
Cited
US2563430A
Cited
US1838633A
Cited
US2067215A
Cited
US2127202A
Cited
US2233422A
Cited
US2293779A
Cited
US2301983A
Cited
US2329065A
Cited
US2568936A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-27 | 1958-06-28 | 1958-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-27 | 1962-06-28 | 1962-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-27 | 1966-06-28 | 1966-12-28 | $7700.00 | Window Closed / Lapsed |