Patent US2297601A successfully refreshed from Google Patents.
US2563084A
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US
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Continuous tumbling mill
Assignee: Wheelabrator Corp
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Filing: 1948-05-01
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Granted: 1951-08-07
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Expires: 1968-05-01
Abstract
No abstract record available.
Inventors
- 👤 David C Turnbull
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:26
CPC Classifications
B; B24; B24C; B24C3/00; B24C3/18; B24C3/26; B24C3/266
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190620637A
Cited
US1729671A
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US2047106A
Cited
US2204588A
Cited
US2131772A
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US2447802A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |