Patent US2928523A successfully refreshed from Google Patents.
US2928523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endless conveyor for loose materials
Assignee: HEINR AUER
•
Filing: 1957-05-17
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Granted: 1960-03-15
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Expires: 1977-05-17
Abstract
No abstract record available.
Inventors
- 👤 Neidhardt Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:38
CPC Classifications
B; B65; B65G; B65G17/00; B65G17/06; B65G17/10; B65G17/08; B65G2201/00; B65G2201/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US312891A
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US476787A
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US878650A
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US993418A
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US1423649A
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US1545759A
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US1744676A
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US1831629A
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US2584134A
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US2510212A
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US2711816A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |