US2933613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for sorting objects according to color
Assignee: University of California Berkeley
•
Filing: 1952-11-24
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Granted: 1960-04-19
•
Expires: 1972-11-24
Abstract
No abstract record available.
Inventors
- 👤 John B Powers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:06
CPC Classifications
B; B07; B07C; B07C5/00; B07C5/34; B07C5/342
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1828875A
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US1987441A
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US2162529A
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US2176013A
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US2244826A
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US2218357A
Cited
US2439373A
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US2678581A
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US2678725A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |