US3365341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nickel recovery process
Assignee: Republic Steel Corp
•
Filing: 1965-07-21
•
Granted: 1968-01-23
•
Expires: 1985-07-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward F Fitzhugh
- 👤 Don C Seidel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:02
CPC Classifications
C; C22; C22B; C22B23/00; C22B23/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US791090A
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US2197185A
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US2651562A
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US2588265A
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US2671712A
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US2838391A
Cited
US3058824A
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US3218161A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-22 | 1971-07-24 | 1972-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-22 | 1975-07-24 | 1976-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-22 | 1979-07-24 | 1980-01-23 | $7700.00 | Window Closed / Lapsed |