US3608138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for rolling and forming articles
Assignee: ROTARY PROFILE ANSTALT
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Filing: 1969-12-22
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Granted: 1971-09-28
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Expires: 1989-12-22
Abstract
Abstract AN EXTRUDER FOR CONTINUOUSLY EXTRUDING ARTICLES IS PROVIDED. THE EXTRUDER HAS A BODY WITH A NOZZLE, AN OPEN END AND CONDUITS JOINING THE OPEN END AND THE NOZZLE. THE MATERIAL TO BE EXTRUDED IS CONTAINED WITHIN THE EXTRUDER BODY. A NUMBER OF ROLLERS ARE RECEIVED IN THE OPEN END OF THE EXTRUDER BODY AND ROLL ON THE SURFACE OF THE MATERIAL. BACKING MEANS ARE ALSO PROVIDED AGAINST WHICH THE ROLLERS ROLL.
Inventors
- 👤 Jacob Marcovitch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:34
CPC Classifications
B; B21; B21K; B21K23/00; B21B; B21B1/00; B21B1/08; B21C; B21C23/00; B21C23/005; B21C23/02; B21C23/04; B21C23/08; B21C23/10; B21C23/14; B21C23/21; B21C26/00; B21C33/00; B21C37/00; B21C37/06; B21C37/15; B21C37/151; B21H; B21H1/00; B21H1/02; B21H1/04; B21H1/06; B21H1/12; B21H5/00; B21H7/00; B21H7/18; B21H8/00; B29; B29C; B29C43/00; B29C43/22; B29C48/00; B29C48/022; B29C48/25; B29C48/36; B29C48/465; B29C67/00; B29C67/0003; B30; B30B; B30B11/00; B30B11/22; E; E01; E01C; E01C19/00; E01C19/22; E01C19/23; E01C19/236; E02; E02D; E02D3/00; E02D3/02; E02D3/026; B29C48/03; B29C48/12
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) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |