Patent US2816716A successfully refreshed from Google Patents.
US2816716A
Expired / Lapsed
US
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Rotor containing comminuting mill, with floating check plates between rotor ends andmill casing
Assignee: ARTHUR H THOMAS CO
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Filing: 1953-05-25
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Granted: 1957-12-17
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Expires: 1973-05-25
Abstract
No abstract record available.
Inventors
- 👤 George C Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:29
CPC Classifications
B; B02; B02C; B02C18/00; B02C18/06; B02C18/14; B02C18/144; B02C23/00; B02C23/08; B02C23/16; B02C2023/165
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1706643A
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US1721183A
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US2054239A
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US2058869A
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US2145177A
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US2212883A
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US2192382A
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US2360357A
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US2440051A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |