Patent US2561392A successfully refreshed from Google Patents.
US2561392A
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US
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Process and apparatus for treating solutions to recover and coat solid particles
Assignee: Individual
•
Filing: 1945-08-11
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Granted: 1951-07-24
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Expires: 1965-08-11
Abstract
No abstract record available.
Inventors
- 👤 Donald E Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:16
CPC Classifications
A; A23; A23C; A23C9/00; A23C9/16; A23L; A23L2/00; A23L2/02; A23L2/08; A23L2/10; A23L2/102; B; B01; B01D; B01D1/00; B01D1/16; B01D1/18; B01J; B01J2/00; B01J2/16; Y; Y10; Y10S; Y10S159/00; Y10S159/03; Y10S159/06; Y10S159/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1546922A
Cited
USRE20119E
Cited
US1157935A
Cited
US1419824A
Cited
US2101635A
Cited
US2059983A
Cited
US2337684A
Cited
US2399717A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |