Patent US2618038A successfully refreshed from Google Patents.
US2618038A
Expired / Lapsed
US
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Paving dowel supporting structure
Assignee: Individual
•
Filing: 1951-11-17
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Granted: 1952-11-18
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Expires: 1971-11-17
Abstract
No abstract record available.
Inventors
- 👤 James S Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:49
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/50; E01C19/502; E01C19/504
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US995630A
Cited
US1939007A
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US2020912A
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US2107427A
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US2162592A
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US2273198A
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US2489851A
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US2586912A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-18 | 1956-05-19 | 1956-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-18 | 1960-05-19 | 1960-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-18 | 1964-05-19 | 1964-11-18 | $7700.00 | Window Closed / Lapsed |