Patent US2789678A successfully refreshed from Google Patents.
US2789678A
Expired / Lapsed
US
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Conveyor system
Assignee: OHIO BOXBOARD CO
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Filing: 1954-06-04
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Granted: 1957-04-23
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Expires: 1974-06-04
Abstract
No abstract record available.
Inventors
- 👤 Robert J Hickin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:46
CPC Classifications
B; B65; B65B; B65B43/00; B65B43/42; B65B43/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2298829A
Cited
US2405805A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-22 | 1960-10-22 | 1961-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-22 | 1964-10-22 | 1965-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-22 | 1968-10-22 | 1969-04-23 | $7700.00 | Window Closed / Lapsed |