Patent US3943518A successfully refreshed from Google Patents.
US2773584A
Expired / Lapsed
US
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Pivot flight conveyor
Assignee: Joy Manufacturing Co
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Filing: 1955-01-24
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Granted: 1956-12-11
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Expires: 1975-01-24
Abstract
No abstract record available.
Inventors
- 👤 Neal W Densmore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:19
CPC Classifications
B; B65; B65G; B65G19/00; B65G19/18; B65G19/22; B65G19/24; B65G19/26; E; E21; E21F; E21F13/00; E21F13/06
Claims Analysis
Total Claims: 0
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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) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |