Patent US3031091A successfully refreshed from Google Patents.
US3031091A
Expired / Lapsed
US
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Lift truck
Assignee: Doosan Bobcat North America Inc
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Filing: 1957-08-26
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Granted: 1962-04-24
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Expires: 1977-08-26
Abstract
No abstract record available.
Inventors
- 👤 Dennis E Erickson
- 👤 Dale W Mckee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 23:16
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/075; B66F9/07554; B66F9/08; B66F9/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1497686A
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US2558306A
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US2621812A
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US2720993A
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US2752056A
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US2701031A
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US2785817A
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US2789707A
Cited
US2841404A
Cited
US2897985A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |