US2941667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leaf tobacco separator and method
Assignee: Brown and Williamson Holdings Inc
•
Filing: 1957-04-16
•
Granted: 1960-06-21
•
Expires: 1977-04-16
Abstract
No abstract record available.
Inventors
- 👤 Jr George H Hilgartner
- 👤 Martin W Severance
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:27
CPC Classifications
A; A24; A24B; A24B5/00; A24B5/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US555533A
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DE60179C
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GB190107880A
Cited
US736862A
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US775965A
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US844620A
Cited
US1720861A
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US1863666A
Cited
US2130880A
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US2132961A
Cited
US2210103A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |