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US2606658A
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Egg grading machine comprising pneumatic lifting means supported by scale balance arms
Assignee: CHESTNUT FARMS CHEVY CHASE DAI
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Filing: 1949-03-24
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Granted: 1952-08-12
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Expires: 1969-03-24
Abstract
No abstract record available.
Inventors
- 👤 Charles K Powell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:15
CPC Classifications
B; B07; B07C; B07C5/00; B07C5/16; B07C5/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1984031A
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US2138475A
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US2217983A
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US2296645A
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US2436534A
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US2451836A
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US2471479A
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US2406311A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-12 | 1956-02-11 | 1956-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-12 | 1960-02-11 | 1960-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-12 | 1964-02-11 | 1964-08-12 | $7700.00 | Window Closed / Lapsed |