Patent US3536601A successfully refreshed from Google Patents.
US3536601A
Expired / Lapsed
US
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Process for acid pickling
Assignee: Inland Steel Co
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Filing: 1968-03-07
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Granted: 1970-10-27
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Expires: 1988-03-07
Abstract
No abstract record available.
Inventors
- 👤 Uno T Hill
- 👤 Irwin Rosenak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:59
CPC Classifications
C; C23; C23G; C23G3/00; C23G3/02
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) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |