Patent US3611488A successfully refreshed from Google Patents.
US3611488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for continuously consolidating chips and dust particles of leather or the like
Assignee: Badische Maschinenfabrik GmbH
•
Filing: 1968-09-05
•
Granted: 1971-10-12
•
Expires: 1988-09-05
Abstract
Abstract A WORM EXTRUSION PRESS FOR CONTINUOUSLY CONSOLIDATING CHIPS AND DUST PARTICLES OF LEATHER OR THE LIKE INTO A SOLID BODY. THIS PRESS MAY BE ADDITIONALLY PROVIDED WITH A SLOTTED REACTION TUBE WHICH PERMITS THE EXTRUDED BODY TO EXPAND TO A CERTAIN EXTENT SO AS TO ELIMINATE INTERNAL TENSIONS OR AT FIRST TO BE SLIGHTLY COMPRESSED AND THEN TO EXPAND.
Inventors
- 👤 Kasimir Hoffmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:07
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/22; B30B11/24; B30B11/248
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |