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US2583108A
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Concrete spreader
Assignee: Standard Steel Corp
•
Filing: 1945-06-18
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Granted: 1952-01-22
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Expires: 1965-06-18
Abstract
No abstract record available.
Inventors
- 👤 Lewis William Hurst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:43
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/12; E01C19/18; E01C19/187
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1467243A
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US1977850A
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US2041350A
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US2006316A
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US2059607A
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US2138828A
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US2373828A
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US2328888A
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US2396426A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-21 | 1955-07-23 | 1956-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-21 | 1959-07-23 | 1960-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-21 | 1963-07-23 | 1964-01-22 | $7700.00 | Window Closed / Lapsed |