Patent US2967606A successfully refreshed from Google Patents.
US2967606A
Expired / Lapsed
US
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Vibratory helical conveyor
Assignee: Eriez Manufacturing Co
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Filing: 1958-08-12
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Granted: 1961-01-10
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Expires: 1978-08-12
Abstract
No abstract record available.
Inventors
- 👤 Robert R Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:11
CPC Classifications
B; B65; B65G; B65G27/00; B65G2812/00; B65G2812/03; B65G2812/0384; B65G2812/0388; B65G2812/0392
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2735731A
Cited
US2790534A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-10 | 1964-07-11 | 1965-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-10 | 1968-07-11 | 1969-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-10 | 1972-07-11 | 1973-01-10 | $7700.00 | Window Closed / Lapsed |