Patent US2557484A successfully refreshed from Google Patents.
US2557484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Truck crane
Assignee: Individual
•
Filing: 1947-01-17
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Granted: 1951-06-19
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Expires: 1967-01-17
Abstract
No abstract record available.
Inventors
- 👤 Harold A Wagner
- 👤 Gustave H Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:27
CPC Classifications
B; B66; B66C; B66C13/00; B66C13/52; B66C13/54; B66C13/56; B66C23/00; B66C23/18; B66C23/36; B66C2700/00; B66C2700/03; B66C2700/0321; B66C2700/0357; B66C2700/0364; B66C2700/0371
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US873076A
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US1008338A
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US1337400A
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US1412525A
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US1353697A
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US1492223A
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US1782406A
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US1917053A
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US2387087A
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US2461401A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-18 | 1954-12-18 | 1955-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-18 | 1958-12-18 | 1959-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-18 | 1962-12-18 | 1963-06-19 | $7700.00 | Window Closed / Lapsed |