Patent US2662570A successfully refreshed from Google Patents.
US2662570A
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Hulling machine having rubber hulling surfaces of different hardness
Assignee: Baker Castor Oil Co
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Filing: 1953-03-09
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Granted: 1953-12-15
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Expires: 1973-03-09
Abstract
No abstract record available.
Inventors
- 👤 Hansen Edward Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:00
CPC Classifications
B; B02; B02B; B02B3/00; B02B3/02
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-14 | 1957-06-15 | 1957-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-14 | 1961-06-15 | 1961-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-14 | 1965-06-15 | 1965-12-15 | $7700.00 | Window Closed / Lapsed |