US3613429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for securing of rolling mill rolls in particular those in stretch reducing mills
Assignee: Mannesmann Demag AG
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Filing: 1969-07-30
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Granted: 1971-10-19
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Expires: 1989-07-30
Abstract
Abstract THE DISCLOSURE RELATED TO A MEANS OF SECURING ROLLING MILL ROLLS, IN PARTICULAR THOSE IN STRETCH REDUCING MILLS, CONSISTING OF A FRICTION-TYPE CONNECTION BETWEEN THE ROLL BODY CENTRE BORE AND ONE OR MORE RING(S) FITTED TO THE DRIVE SHAFT PORTION TO TRANSMIT THE DRIVING TORQUE.
Inventors
- 👤 Karl-Heinz Schwarzenberg
- 👤 Rolf Michel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:05
CPC Classifications
B; B21; B21B; B21B27/00; B21B27/02; B21B27/03; B21B27/035; B21B17/00; B21B17/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-18 | 1975-04-19 | 1975-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-18 | 1979-04-19 | 1979-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-18 | 1983-04-19 | 1983-10-19 | $7700.00 | Window Closed / Lapsed |