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US2869714A
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US
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Conveyor construction
Assignee: BF Gump Co
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Filing: 1956-11-29
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Granted: 1959-01-20
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Expires: 1976-11-29
Abstract
No abstract record available.
Inventors
- 👤 Ralph E Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:03
CPC Classifications
A; A21; A21C; A21C1/00; A21C1/14; A21C1/142; B; B65; B65G; B65G65/00; B65G65/30; B65G65/34; B65G65/40; B65G65/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US652677A
Cited
US1702554A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |