US2999649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for continuously crushing and selectively discharging solid materials
Assignee: CONCENTRO Corp
•
Filing: 1956-03-01
•
Granted: 1961-09-12
•
Expires: 1976-03-01
Abstract
No abstract record available.
Inventors
- 👤 Charles S Radcliffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:07
CPC Classifications
B; B02; B02C; B02C19/00; B02C19/0056
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US63713A
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US2017598A
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US2381351A
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US2675966A
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US2520320A
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US2498111A
Cited
US2554450A
Cited
US2672296A
Cited
US2595117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |