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US2860837A
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US
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Crusher main frame
Assignee: Nordberg Manufacturing Co
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Filing: 1953-08-11
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Granted: 1958-11-18
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Expires: 1973-08-11
Abstract
No abstract record available.
Inventors
- 👤 Werner Ewald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:44
CPC Classifications
B; B02; B02C; B02C2/00; B02C2/02; B02C2/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1728433A
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US2263272A
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US2155393A
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US2475772A
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US2409391A
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US2628788A
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US2489936A
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US2645944A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-17 | 1962-05-19 | 1962-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-17 | 1966-05-19 | 1966-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-17 | 1970-05-19 | 1970-11-18 | $7700.00 | Window Closed / Lapsed |