Patent US2796636A successfully refreshed from Google Patents.
US3532608A
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US
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Method of treating steel and electrolyte therefor
Assignee: United States Steel Corp
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Filing: 1967-09-29
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Granted: 1970-10-06
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Expires: 1987-09-29
Abstract
No abstract record available.
Inventors
- 👤 Guy Serra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:54
CPC Classifications
C; C25; C25D; C25D11/00; C25D11/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2682503A
Cited
US2784153A
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US3081238A
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US3113845A
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US3296100A
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US3316160A
Cited
US3450610A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-05 | 1974-04-06 | 1974-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-05 | 1978-04-06 | 1978-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-05 | 1982-04-06 | 1982-10-06 | $7700.00 | Window Closed / Lapsed |