Patent US2511262A successfully refreshed from Google Patents.
US2511262A
Expired / Lapsed
US
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Feed mechanism for rotatable drum agitating apparatus
Assignee: Chain Belt Co
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Filing: 1948-08-05
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Granted: 1950-06-13
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Expires: 1968-08-05
Abstract
No abstract record available.
Inventors
- 👤 Louis G Hilkemeier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:34
CPC Classifications
B; B28; B28C; B28C5/00; B28C5/42; B28C5/4203; B28C5/4234; B28C5/4237
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US716087A
Cited
US968275A
Cited
US1692374A
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US1827713A
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US1898416A
Cited
US2264039A
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US2202652A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |