US1497310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concentration of ores
Assignee: Minerals Separation North American Corp
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Filing: 1919-11-20
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Granted: 1924-06-10
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Expires: 1939-11-20
Abstract
No abstract record available.
Inventors
- 👤 Tucker Stanley
- 👤 Edser Edwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:47
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/001; B03D1/004; B03D1/012; B03D2201/00; B03D2201/04; B03D2203/00; B03D2203/02; B03D2203/04
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) | 1927-06-10 | 1927-12-10 | 1928-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-06-10 | 1931-12-10 | 1932-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-06-10 | 1935-12-10 | 1936-06-10 | $7700.00 | Window Closed / Lapsed |