Patent DE449935C successfully refreshed from Google Patents.
Patent US2964179A successfully refreshed from Google Patents.
US2964179A
Expired / Lapsed
US
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Separating, washing and classifying solids and continuous apparatus therefor
Assignee: Harvey Machine Co Inc
•
Filing: 1956-09-11
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Granted: 1960-12-13
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Expires: 1976-09-11
Abstract
No abstract record available.
Inventors
- 👤 Loevenstein Hirsch
- 👤 Carl W Carlson
- 👤 Leland B Gunderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:09
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/0018; B01D21/02; B01D21/04; B01D21/06; B01D21/24; B01D21/245
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US116763A
Cited
US1322487A
Cited
US650495A
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US1077810A
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US1056952A
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US1332751A
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US1647310A
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US1888131A
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US2276539A
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US2474059A
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US2522556A
Cited
CH296327A
Cited
US2756965A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |