US2437528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-temperature cleaning of steel strip, including removing ferrous chloride therefrom
Assignee: Surface Combustion Corp
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Filing: 1945-06-08
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Granted: 1948-03-09
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Expires: 1965-06-08
Abstract
No abstract record available.
Inventors
- 👤 Ralph W Hodil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:18
CPC Classifications
C; C23; C23G; C23G5/00; C23C; C23C2/00; C23C2/003; C23C2/0035; C23C2/0038; C23C2/02; C23C2/022; C23C2/024; C23C2/04; C23C2/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-09 | 1951-09-08 | 1952-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-09 | 1955-09-08 | 1956-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-09 | 1959-09-08 | 1960-03-09 | $7700.00 | Window Closed / Lapsed |