US3466167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of impurities from nickel sulfide
Assignee: Huntington Alloys Corp
•
Filing: 1966-08-19
•
Granted: 1969-09-09
•
Expires: 1986-08-19
Abstract
No abstract record available.
Inventors
- 👤 Alexander Illis
- 👤 Alan Manson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:58
CPC Classifications
C; C01; C01G; C01G53/00; C01G53/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US874496A
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US890432A
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US1049746A
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US1006355A
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US1238298A
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US1480439A
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US1440186A
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US1491653A
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US3117860A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-08 | 1973-03-10 | 1973-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-08 | 1977-03-10 | 1977-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-08 | 1981-03-10 | 1981-09-09 | $7700.00 | Window Closed / Lapsed |