Patent US3488036A successfully refreshed from Google Patents.
US3488036A
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US
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Rope-drag line device for conveying of bulk goods
Assignee: Elba Werk Maschinen GmbH and Co
•
Filing: 1967-08-21
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Granted: 1970-01-06
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Expires: 1987-08-21
Abstract
No abstract record available.
Inventors
- 👤 Herbert Feger
- 👤 Werner Hagen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:38
CPC Classifications
B; B28; B28C; B28C7/00; B28C7/04; B28C7/06; B28C7/08; B28C7/0823; B28C7/0829; B66; B66D; B66D1/00; B66D1/60; B66D1/80; E; E02; E02F; E02F3/00; E02F3/04; E02F3/46; E02F3/48
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-05 | 1973-07-07 | 1974-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-05 | 1977-07-07 | 1978-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-05 | 1981-07-07 | 1982-01-06 | $7700.00 | Window Closed / Lapsed |