Patent US2942607A successfully refreshed from Google Patents.
US2942607A
Expired / Lapsed
US
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Machines for cleaning tobacco scrap
Assignee: W I SKINNER AND Co
•
Filing: 1957-07-08
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Granted: 1960-06-28
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Expires: 1977-07-08
Abstract
No abstract record available.
Inventors
- 👤 William I Skinner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:27
CPC Classifications
A; A24; A24B; A24B3/00; A24B3/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US743655A
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GB190526683A
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US1164953A
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US1202574A
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US1498144A
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US2055630A
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US2345988A
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US2367060A
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US2467248A
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US2421483A
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US2513297A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |