US2814577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing corrosion resistant coatings of uniform color and appearnce on asuccession of aluminum pieces
Assignee: Henkel Corp
•
Filing: 1956-05-23
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Granted: 1957-11-26
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Expires: 1976-05-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Nelson J Newhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:58
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/73; C23C22/77
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2438877A
Cited
US2679752A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-25 | 1961-05-27 | 1961-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-25 | 1965-05-27 | 1965-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-25 | 1969-05-27 | 1969-11-26 | $7700.00 | Window Closed / Lapsed |