Patent US3020735A successfully refreshed from Google Patents.
US3020735A
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Automatically operable articulated coupling means between the rolls of a roling milland their drive spindle means
Assignee: Mannesmann Demag AG
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Filing: 1960-01-12
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Granted: 1962-02-13
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Expires: 1980-01-12
Abstract
No abstract record available.
Inventors
- 👤 Wegmann Ludwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:36
CPC Classifications
F; F16; F16D; F16D1/00; F16D1/10; F16D1/101; B; B02; B02C; B02C4/00; B02C4/28; B02C4/42; B21; B21B; B21B35/00; B21B35/14; B21B35/141; B21B35/142; B21B35/145; B21B35/146; B21B35/148; D; D06; D06C; D06C15/00; D06C15/08; F16D3/00; F16D3/02; F16D3/06; F16D3/16; F16D3/26; F16D3/265
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |