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Patent US2992784A successfully refreshed from Google Patents.
US2992784A
Expired / Lapsed
US
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Bowl liners for crushers
Assignee: Simplicity Engineering Inc
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Filing: 1959-02-24
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Granted: 1961-07-18
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Expires: 1979-02-24
Abstract
No abstract record available.
Inventors
- 👤 George W Behnke
- 👤 Hans A Wirth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:06
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/14; B02C13/18; B02C13/1807; B02C13/1835; B02C13/1842; B02C2013/1885
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA521071A
Cited
GB376760A
Cited
US1941770A
Cited
US2012694A
Cited
FR902258A
Cited
US2568203A
Cited
DE943389C
Cited
US2707314A
Cited
US2801803A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-17 | 1965-01-16 | 1965-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-17 | 1969-01-16 | 1969-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-17 | 1973-01-16 | 1973-07-18 | $7700.00 | Window Closed / Lapsed |