Patent US2520889A successfully refreshed from Google Patents.
US2520889A
Expired / Lapsed
US
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Apparatus for cleansing eggs in bulk
Assignee: Individual
•
Filing: 1949-10-03
•
Granted: 1950-08-29
•
Expires: 1969-10-03
Abstract
No abstract record available.
Inventors
- 👤 Charles G Paden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:08
CPC Classifications
A; A01; A01K; A01K43/00; A01K43/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2287141A
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US2302809A
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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) | 1953-08-28 | 1954-02-27 | 1954-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-28 | 1958-02-27 | 1958-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-28 | 1962-02-27 | 1962-08-29 | $7700.00 | Window Closed / Lapsed |