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Patent US1166067A successfully refreshed from Google Patents.
US1166067A
Expired / Lapsed
US
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Process for separating cobalt from ores or by-products.
Assignee: CHEMICAL PRODUCTS Co
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Filing: 1914-09-25
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Granted: 1915-12-28
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Expires: 1934-09-25
Abstract
No abstract record available.
Inventors
- 👤 Philip M Mckenna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:41
CPC Classifications
C; C22; C22B; C22B23/00; C22B23/02; C22B23/025
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) | 1918-12-27 | 1919-06-28 | 1919-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-12-27 | 1923-06-28 | 1923-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-12-27 | 1927-06-28 | 1927-12-28 | $7700.00 | Window Closed / Lapsed |