US3010579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mineral desliming concentrating and separating apparatus
Assignee: Individual
•
Filing: 1959-08-17
•
Granted: 1961-11-28
•
Expires: 1979-08-17
Abstract
No abstract record available.
Inventors
- 👤 Duesling Clarence Lehi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:50
CPC Classifications
B; B04; B04C; B04C3/00; B04C5/00; B04C5/12; B04C5/13; B04C2005/133
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1882329A
Cited
US2709397A
Cited
US2719631A
Cited
US2816490A
Cited
US2829771A
Cited
US2850162A
Cited
US2909283A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-27 | 1965-05-29 | 1965-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-27 | 1969-05-29 | 1969-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-27 | 1973-05-29 | 1973-11-28 | $7700.00 | Window Closed / Lapsed |