US2424810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Housing and conveyor connections for screw conveyors
Assignee: SEREW CONVEYOR Corp
•
Filing: 1944-08-11
•
Granted: 1947-07-29
•
Expires: 1964-08-11
Abstract
No abstract record available.
Inventors
- 👤 Edward P Escher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:30
CPC Classifications
B; B65; B65G; B65G33/00; B65G33/24; B65G33/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US272006A
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US275153A
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US1032850A
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US1359989A
Cited
US1854855A
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US2103145A
Cited
US2151253A
Cited
US2279201A
Cited
US2260812A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-28 | 1951-01-27 | 1951-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-28 | 1955-01-27 | 1955-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-28 | 1959-01-27 | 1959-07-29 | $7700.00 | Window Closed / Lapsed |