US2631737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Highway crane
Assignee: Cullen Friestedt Co
•
Filing: 1945-11-17
•
Granted: 1953-03-17
•
Expires: 1965-11-17
Abstract
No abstract record available.
Inventors
- 👤 Edward V Cullen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:14
CPC Classifications
B; B66; B66C; B66C23/00; B66C23/62; B66C23/72; B66C23/78; B66C2700/00; B66C2700/03; B66C2700/0321; B66C2700/0357; B66C2700/0378
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US679840A
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US1100080A
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GB191421944A
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US1274978A
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US1267422A
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US1408263A
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US1412944A
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US1672212A
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GB292895A
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FR661369A
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US1760130A
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US1940690A
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US2358236A
Cited
US2343800A
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US2325731A
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US2465508A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |