Patent US2994513A successfully refreshed from Google Patents.
US2994513A
Expired / Lapsed
US
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Dual hook block hoists
Assignee: Alliance Machine Co
•
Filing: 1959-09-29
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Granted: 1961-08-01
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Expires: 1979-09-29
Abstract
No abstract record available.
Inventors
- 👤 Myron R Bowerman
- 👤 Richard L Stuckey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:56
CPC Classifications
B; B66; B66D; B66D3/00; B66D3/04; B66D3/043; B66C; B66C13/00; B66C2700/00; B66C2700/01; B66C2700/012; B66C2700/017
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1436608A
Cited
US2463394A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-31 | 1965-01-30 | 1965-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-31 | 1969-01-30 | 1969-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-31 | 1973-01-30 | 1973-08-01 | $7700.00 | Window Closed / Lapsed |