Patent US2991847A successfully refreshed from Google Patents.
US2991847A
Expired / Lapsed
US
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Lifting mechanism for lift truck
Assignee: Yale and Towne Manufacturing Co
•
Filing: 1953-11-30
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Granted: 1961-07-11
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Expires: 1973-11-30
Abstract
No abstract record available.
Inventors
- 👤 Bronislaus I Ulinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:36
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/075; B66F9/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US536399A
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US1638009A
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US2428223A
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US2456320A
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US2513928A
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US2518251A
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US2493824A
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US2527384A
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US2655115A
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US2642157A
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US2701031A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |