Patent US2752098A successfully refreshed from Google Patents.
US2752098A
Expired / Lapsed
US
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Impeller for impact crusher
Assignee: Individual
•
Filing: 1954-08-09
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Granted: 1956-06-26
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Expires: 1974-08-09
Abstract
No abstract record available.
Inventors
- 👤 Charles A Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:35
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/14; B02C13/18; B02C13/1807; B02C13/1814; B02C13/26; B02C13/28; B02C13/2804; B24; B24C; B24C5/00; B24C5/06; B02C13/286; B02C2013/28618; B02C2013/28681
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1065275A
Cited
US1921914A
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US2246902A
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US2357843A
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US2392958A
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US2605972A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-26 | 1959-12-26 | 1960-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-26 | 1963-12-26 | 1964-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-26 | 1967-12-26 | 1968-06-26 | $7700.00 | Window Closed / Lapsed |