US2574085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extraction drier
Assignee: BURTON H WILLIAMS
•
Filing: 1947-11-01
•
Granted: 1951-11-06
•
Expires: 1967-11-01
Abstract
No abstract record available.
Inventors
- 👤 John T Bian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:39
CPC Classifications
B; B41; B41F; B41F23/00; B41F23/04; B41F23/0403; B41F23/0406
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1178556A
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US1401303A
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US1484324A
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US1421166A
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GB187739A
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US1580957A
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US1656824A
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US1656709A
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US1983995A
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US1741882A
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US1964573A
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US2165970A
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US2445443A
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US2508357A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-05 | 1955-05-07 | 1955-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-05 | 1959-05-07 | 1959-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-05 | 1963-05-07 | 1963-11-06 | $7700.00 | Window Closed / Lapsed |