US2419109A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of tobacco
Assignee: Individual
•
Filing: 1940-11-28
•
Granted: 1947-04-15
•
Expires: 1960-11-28
Abstract
No abstract record available.
Inventors
- 👤 Alfred J Berger
- 👤 Hoke S Greene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:55
CPC Classifications
A; A24; A24B; A24B3/00; A24B3/18; A24B3/182
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US273362A
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US877698A
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AT84290B
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GB191502394A
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US1437095A
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GB226847A
Cited
US1843304A
Cited
US2086194A
Cited
US2164030A
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US2217931A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-14 | 1950-10-14 | 1951-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-14 | 1954-10-14 | 1955-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-14 | 1958-10-14 | 1959-04-15 | $7700.00 | Window Closed / Lapsed |