Patent US2590443A successfully refreshed from Google Patents.
US2590443A
Expired / Lapsed
US
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Cutoff plate for spreader boxes
Assignee: HY WAY MACHINERY Inc
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Filing: 1948-02-05
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Granted: 1952-03-25
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Expires: 1968-02-05
Abstract
No abstract record available.
Inventors
- 👤 William J Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:39
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/48; E01C19/4866; E01C19/4873
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1488229A
Cited
US1630538A
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US1748141A
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US2109020A
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US2215455A
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US2225431A
Cited
US2267022A
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US2403820A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-25 | 1955-09-24 | 1956-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-25 | 1959-09-24 | 1960-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-25 | 1963-09-24 | 1964-03-25 | $7700.00 | Window Closed / Lapsed |