US2485061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of protecting metallic surfaces
Assignee: Carnegie Illinois Steel Corp
•
Filing: 1946-03-08
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Granted: 1949-10-18
•
Expires: 1966-03-08
Abstract
No abstract record available.
Inventors
- 👤 Peter J Nebe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:15
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/0006; C21D9/0025; C21D1/00; C21D1/68; C21D1/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1467398A
Cited
US1550629A
Cited
GB284219A
Cited
US2047087A
Cited
US2016139A
Cited
US2157155A
Cited
US2209304A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-17 | 1953-04-18 | 1953-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-17 | 1957-04-18 | 1957-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-17 | 1961-04-18 | 1961-10-18 | $7700.00 | Window Closed / Lapsed |