Patent US2632584A successfully refreshed from Google Patents.
US2632584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feeder for granular bulk material
Assignee: —
•
Filing: —
•
Granted: 1953-03-24
•
Expires: 1970-03-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:58
CPC Classifications
A; A01; A01C; A01C15/00; A01C15/16; B; B02; B02C; B02C11/00; B02C11/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US314652A
Cited
US616546A
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US810978A
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US1023752A
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US1189021A
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US1140436A
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US1161369A
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US1337567A
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US1813519A
Cited
US2071037A
Cited
US2046603A
Cited
US2135716A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |