US2746807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for discharging pulverulent material
Assignee: United Conveyor Corp
•
Filing: 1953-05-18
•
Granted: 1956-05-22
•
Expires: 1973-05-18
Abstract
No abstract record available.
Inventors
- 👤 Edgar B Tolman
- 👤 Ray W Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:45
CPC Classifications
F; F23; F23J; F23J3/00; F23J3/06; B; B65; B65G; B65G53/00; B65G2812/00; B65G2812/16; B65G2812/1608; B65G2812/1616; B65G2812/1625
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US415750A
Cited
US1852535A
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US1896597A
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US2021171A
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US2430278A
Cited
US2657100A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |