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Patent US2614073A successfully refreshed from Google Patents.
US2614073A
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Process of desolventizing materials by distillation
Assignee: Blaw Knox Co
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Filing: 1949-09-30
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Granted: 1952-10-14
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Expires: 1969-09-30
Abstract
No abstract record available.
Inventors
- 👤 Guy N Harcourt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:18
CPC Classifications
C; C11; C11B; C11B1/00; C11B1/10; C11B1/108; B; B01; B01D; B01D3/00; B01D3/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2138048A
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US2185868A
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US2151990A
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US2342419A
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US2315422A
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US2406648A
Cited
US2395901A
Cited
US2417131A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-14 | 1956-04-14 | 1956-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-14 | 1960-04-14 | 1960-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-14 | 1964-04-14 | 1964-10-14 | $7700.00 | Window Closed / Lapsed |