US894383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of ores by means of the precipitation process.
Assignee: IMBERT PROCESS Co
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Filing: 1907-08-19
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Granted: 1908-07-28
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Expires: 1927-08-19
Abstract
No abstract record available.
Inventors
- 👤 Antoine Henri Imbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:53
CPC Classifications
C; C22; C22B; C22B19/00; C22B19/04
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) | 1911-07-28 | 1912-01-27 | 1912-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-07-28 | 1916-01-27 | 1916-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-07-28 | 1920-01-27 | 1920-07-28 | $7700.00 | Window Closed / Lapsed |