Patent US5835870A successfully refreshed from Google Patents.
Patent US2441820A successfully refreshed from Google Patents.
US2441820A
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US
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Method and apparatus for supplying a slurry
Assignee: MW Kellogg Co
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Filing: 1944-04-24
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Granted: 1948-05-18
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Expires: 1964-04-24
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Jewell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:32
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; C10G11/08; B; B01; B01J; B01J27/00; B01J27/06; B01J8/00; B01J8/0015; B01J8/18; B01J8/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB329044A
Cited
US2041858A
Cited
GB435457A
Cited
US2088214A
Cited
US2192094A
Cited
US2220092A
Cited
US2334553A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-05-18 | 1951-11-17 | 1952-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-18 | 1955-11-17 | 1956-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-18 | 1959-11-17 | 1960-05-18 | $7700.00 | Window Closed / Lapsed |