US2789534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hanging hopper with adjustably suspended feeding trough
Assignee: HD Hudson Manufacturing Co
•
Filing: 1954-05-14
•
Granted: 1957-04-23
•
Expires: 1974-05-14
Abstract
No abstract record available.
Inventors
- 👤 Jacob T Landgraf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:59
CPC Classifications
A; A01; A01K; A01K39/00; A01K39/01; A01K39/012
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1078853A
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US1106547A
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US1114892A
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US1131491A
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US1707841A
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US1790045A
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US2277420A
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US2438080A
Cited
US2522634A
Cited
US2660150A
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 |