US2653115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of pickling
Assignee: Republic Steel Corp
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Filing: 1948-10-14
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Granted: 1953-09-22
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Expires: 1968-10-14
Abstract
No abstract record available.
Inventors
- 👤 Ralph M Drews
- 👤 Harold L Farling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:08
CPC Classifications
C; C23; C23G; C23G1/00; C23G1/02; C23G1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
THE METHOD OF PICKING A FERROUS METAL ARTICLE WHICH COMPRISES THE STEP OF CONTACTING THE ARTICLE AT A TEMPERATURE OF ABOUT 300* F. WITH A PICKING BATH AT A TEMPERATURE BETWEEN ABOUT 180* F. AND ABOUT 210* F.
Claim 2
Independent Claim
38 words
THE METHOD OF PICKING A FERROUS METAL ARTICLE WHICH COMPRISES THE STEP OF CONTACTING THE ARTICLE AT A TEMPERATURE OF ABOUT 300* F. WITH A PICKING BATH AT A TEMPERATURE BETWEEN ABOUT 180* F. AND ABOUT 210* F.
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) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |