US2467773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sorting device for separating articles of different conductivities
Assignee: Deere and Co
•
Filing: 1945-05-11
•
Granted: 1949-04-19
•
Expires: 1965-05-11
Abstract
No abstract record available.
Inventors
- 👤 Charles T Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:27
CPC Classifications
B; B07; B07C; B07C5/00; B07C5/34; B07C5/344
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1153381A
Cited
US1431814A
Cited
DE494092C
Cited
US1967296A
Cited
US1987244A
Cited
US2101381A
Cited
US2086060A
Cited
US2198285A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-18 | 1952-10-18 | 1953-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-18 | 1956-10-18 | 1957-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-18 | 1960-10-18 | 1961-04-19 | $7700.00 | Window Closed / Lapsed |