Patent US2990074A successfully refreshed from Google Patents.
US2990074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Industrial truck attachment
Assignee: Doosan Bobcat North America Inc
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Filing: 1956-09-26
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Granted: 1961-06-27
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Expires: 1976-09-26
Abstract
No abstract record available.
Inventors
- 👤 Leonard G Berquist
- 👤 Wyatt A Millious
- 👤 James H Newhouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:13
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/075; B66F9/12; B66F9/18; B66F9/061
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2672990A
Cited
FR1014666A
Cited
US2639048A
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US2787383A
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US2760661A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |