Patent US2720992A successfully refreshed from Google Patents.
US2720992A
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US
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Drum handling mechanism for lift trucks
Assignee: Individual
•
Filing: 1951-01-30
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Granted: 1955-10-18
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Expires: 1971-01-30
Abstract
No abstract record available.
Inventors
- 👤 Walton W Cushman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:44
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/075; B66F9/12; B66F9/18; B66F9/187
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2399360A
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US2519067A
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US2457646A
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US2517085A
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US2586843A
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US2582663A
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US2576048A
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US2613823A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-17 | 1959-04-18 | 1959-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-17 | 1963-04-18 | 1963-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-17 | 1967-04-18 | 1967-10-18 | $7700.00 | Window Closed / Lapsed |