Patent US791090A successfully refreshed from Google Patents.
US791090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of extracting nickel from nickel-bearing substances.
Assignee: Individual
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Filing: 1905-01-12
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Granted: 1905-05-30
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Expires: 1925-01-12
Abstract
No abstract record available.
Inventors
- 👤 Hans A Frasch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:20
CPC Classifications
C; C22; C22B; C22B23/00; C22B23/04; C22B23/0407; C22B23/0415; C22B23/043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1908-05-29 | 1908-11-28 | 1909-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1912-05-29 | 1912-11-28 | 1913-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1916-05-29 | 1916-11-28 | 1917-05-30 | $7700.00 | Window Closed / Lapsed |