US2639829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fork truck having pivotally mounted extension for high level dumping
Assignee: Dempster Brothers Inc
•
Filing: 1949-06-13
•
Granted: 1953-05-26
•
Expires: 1969-06-13
Abstract
No abstract record available.
Inventors
- 👤 George R Dempster
- 👤 Harry W Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:16
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/075; B66F9/07545; B66F9/08; B66F9/082; B66F9/12; B66F9/19; Y; Y10; Y10S; Y10S414/00; Y10S414/127
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB327795A
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US2121121A
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US2164739A
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US2325568A
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US2273359A
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US2391412A
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US2484512A
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US2506242A
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US2494651A
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US2445038A
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US2502357A
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US2503181A
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US2542425A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-25 | 1956-11-24 | 1957-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-25 | 1960-11-24 | 1961-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-25 | 1964-11-24 | 1965-05-26 | $7700.00 | Window Closed / Lapsed |