US2432610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-classifying ball mill
Assignee: Individual
•
Filing: 1944-09-19
•
Granted: 1947-12-16
•
Expires: 1964-09-19
Abstract
No abstract record available.
Inventors
- 👤 John H Dryer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:40
CPC Classifications
B; B02; B02C; B02C15/00; B02C15/12; B02C2015/126
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US563733A
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US624777A
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US646507A
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US1431428A
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US1452786A
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US1476808A
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US2220104A
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US2183156A
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US2327402A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-15 | 1951-06-16 | 1951-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-15 | 1955-06-16 | 1955-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-15 | 1959-06-16 | 1959-12-16 | $7700.00 | Window Closed / Lapsed |