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Patent US2970865A successfully refreshed from Google Patents.
US2970865A
Expired / Lapsed
US
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Suction nozzle for pneumatic grain conveyor
Assignee: DK Manufacturing Co
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Filing: 1959-09-17
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Granted: 1961-02-07
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Expires: 1979-09-17
Abstract
No abstract record available.
Inventors
- 👤 James F Finnegan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:26
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/34; B65G53/40; B65G53/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-07 | 1964-08-08 | 1965-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-07 | 1968-08-08 | 1969-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-07 | 1972-08-08 | 1973-02-07 | $7700.00 | Window Closed / Lapsed |