Patent US2812089A successfully refreshed from Google Patents.
US2812089A
Expired / Lapsed
US
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Rotating clamp attachment for lift trucks
Assignee: Yale and Towne Manufacturing Co
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Filing: 1954-05-27
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Granted: 1957-11-05
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Expires: 1974-05-27
Abstract
No abstract record available.
Inventors
- 👤 Frank J Purpura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:30
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/075; B66F9/12; B66F9/18; B66F9/183
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2645372A
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US2620930A
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US2575552A
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US2647650A
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US2595131A
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US2582759A
Cited
US2704167A
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US2706061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-04 | 1961-05-06 | 1961-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-04 | 1965-05-06 | 1965-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-04 | 1969-05-06 | 1969-11-05 | $7700.00 | Window Closed / Lapsed |