US2690258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-speed high-sensitivity sorting machine with multiplier tube
Assignee: ELECTRIC SORTING MACHINE Co
•
Filing: 1949-10-11
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Granted: 1954-09-28
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Expires: 1969-10-11
Abstract
No abstract record available.
Inventors
- 👤 David C Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:21
CPC Classifications
B; B07; B07C; B07C5/00; B07C5/34; B07C5/342; B07C5/3425; Y; Y10; Y10S; Y10S209/00; Y10S209/914; Y10S209/919
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1960231A
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US2066934A
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US2140355A
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US2162529A
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US2228560A
Cited
US2415177A
Cited
US2503085A
Cited
US2474230A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-27 | 1958-03-29 | 1958-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-27 | 1962-03-29 | 1962-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-27 | 1966-03-29 | 1966-09-28 | $7700.00 | Window Closed / Lapsed |