Patent US2630352A successfully refreshed from Google Patents.
US2630352A
Expired / Lapsed
US
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Means for handling powdered solids
Assignee: MW Kellogg Co
•
Filing: 1947-01-29
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Granted: 1953-03-03
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Expires: 1967-01-29
Abstract
No abstract record available.
Inventors
- 👤 William J Degnen
- 👤 Johnson William Benedict
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:44
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/0015; B01J8/0025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1319193A
Cited
US1566517A
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US758118A
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US998111A
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US1254244A
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US1364532A
Cited
US2433726A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-02 | 1956-09-01 | 1957-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-02 | 1960-09-01 | 1961-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-02 | 1964-09-01 | 1965-03-03 | $7700.00 | Window Closed / Lapsed |