Patent US4878915A successfully refreshed from Google Patents.
US2961087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Egg grader
Assignee: Individual
•
Filing: 1955-09-14
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Granted: 1960-11-22
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Expires: 1975-09-14
Abstract
No abstract record available.
Inventors
- 👤 Walter J Reading
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:41
CPC Classifications
B; B07; B07C; B07C5/00; B07C5/16; B07C5/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US357145A
Cited
US2070980A
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US2112259A
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US2135778A
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US2160319A
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US2071859A
Cited
US2541610A
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US2633972A
Cited
US2781122A
Cited
US2711813A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |