Patent US2494869A successfully refreshed from Google Patents.
US2494869A
Expired / Lapsed
US
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Dowel assembly for concrete road joints
Assignee: Individual
•
Filing: 1945-01-29
•
Granted: 1950-01-17
•
Expires: 1965-01-29
Abstract
No abstract record available.
Inventors
- 👤 William S Godwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:20
CPC Classifications
E; E01; E01C; E01C11/00; E01C11/02; E01C11/04; E01C11/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1242039A
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US1988269A
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US1880013A
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US2189156A
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US2108393A
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US2060326A
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US2208454A
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US2263150A
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US2201134A
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US2361828A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |