Patent US2332390A successfully refreshed from Google Patents.
US2332390A
Expired / Lapsed
US
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Control for electric hoists
Assignee: Columbus McKinnon Chain Corp
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Filing: 1942-05-07
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Granted: 1943-10-19
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Expires: 1962-05-07
Abstract
No abstract record available.
Inventors
- 👤 Charles J Manney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:27
CPC Classifications
B; B66; B66C; B66C13/00; B66C13/18; B66C13/22; B66C13/23; B66C13/26; B66C2700/00; B66C2700/08; B66C2700/081
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-10-18 | 1947-04-19 | 1947-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-10-18 | 1951-04-19 | 1951-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-10-18 | 1955-04-19 | 1955-10-19 | $7700.00 | Window Closed / Lapsed |