US2497379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crane arrangement for wrecking trucks
Assignee: Individual
•
Filing: 1946-08-30
•
Granted: 1950-02-14
•
Expires: 1966-08-30
Abstract
No abstract record available.
Inventors
- 👤 Sr Ercel C Vandergrift
- 👤 Naffin Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:53
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/12; B60P3/125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1461894A
Cited
US1551132A
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US1767470A
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US1725952A
Cited
US1794148A
Cited
US2045793A
Cited
US2111341A
Cited
US2197406A
Cited
US2145378A
Cited
US2283443A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |