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Patent US2773658A successfully refreshed from Google Patents.
US2773658A
Expired / Lapsed
US
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Transfer device for conveyor system
Assignee: The Grover Co
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Filing: 1954-08-26
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Granted: 1956-12-11
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Expires: 1974-08-26
Abstract
No abstract record available.
Inventors
- 👤 Wilbur M Van Otteren
- 👤 William J Hafner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:01
CPC Classifications
B; B65; B65G; B65G51/00; B65G51/04; B65G51/36; B65G51/40; B65G51/42; B65G51/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1733026A
Cited
US1776697A
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US1814947A
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US2052597A
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DE665674C
Cited
GB499297A
Cited
US2281466A
Cited
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 |