US2477790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Belt conveyer
Assignee: ThyssenKrupp Budd Co
•
Filing: 1944-10-28
•
Granted: 1949-08-02
•
Expires: 1964-10-28
Abstract
No abstract record available.
Inventors
- 👤 Warren H Farr
- 👤 Carolus L Ekaergian
- 👤 Clarence E Dupont
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:13
CPC Classifications
B; B65; B65G; B65G41/00; B65G41/001; B65G41/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US406788A
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US748481A
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US793557A
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US785241A
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US897134A
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US997868A
Cited
US1106632A
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US1589091A
Cited
US1471763A
Cited
US2105610A
Cited
US2266673A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-01 | 1953-01-31 | 1953-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-01 | 1957-01-31 | 1957-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-01 | 1961-01-31 | 1961-08-02 | $7700.00 | Window Closed / Lapsed |