Patent US3466052A successfully refreshed from Google Patents.
Patent US2762729A successfully refreshed from Google Patents.
US2762729A
Expired / Lapsed
US
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Method of removing scale from ferrous workpieces
Assignee: United States Steel Corp
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Filing: 1955-05-27
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Granted: 1956-09-11
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Expires: 1975-05-27
Abstract
No abstract record available.
Inventors
- 👤 Roland B Snow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:21
CPC Classifications
C; C23; C23G; C23G5/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
46 words
A METHOD OF REMOVING SCALE FROM THE SURFACE OF HEATED FERROUS BODIES COMPRISING HEATING THE SURFACE AT LEAST OF SAID BODIES TO A TEMPERATURE BETWEEN ABOUT 1080* C. AND 1400* C. AND WHILE AT SAID TEMPERATURE CONTACTING SAID SURFACE WITH A LIME-CONTAINING MATERIAL IN SOLID FORM.
References Cited (Backward Citations)
GB189413651A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-11 | 1960-03-12 | 1960-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-11 | 1964-03-12 | 1964-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-11 | 1968-03-12 | 1968-09-11 | $7700.00 | Window Closed / Lapsed |