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US3460722A
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Rotary tubular conveyor with flexible hollow shaft
Assignee: Hitachi Zosen Inova Steinmueller GmbH
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Filing: 1967-07-06
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Granted: 1969-08-12
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Expires: 1987-07-06
Abstract
No abstract record available.
Inventors
- 👤 Richard Jung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:00
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/54; B65D88/64; B65D88/66; B65G; B65G65/00; B65G65/30; B65G65/34; B65G65/40; B65G65/48; B65G65/489; G; G01; G01F; G01F11/00; G01F11/10; G01F11/12; G01F11/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3071295A
Cited
US3351181A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-11 | 1973-02-10 | 1973-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-11 | 1977-02-10 | 1977-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-11 | 1981-02-10 | 1981-08-12 | $7700.00 | Window Closed / Lapsed |