US3562858A
Expired / Lapsed
US
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Apparatus for the manufacture of synthetic fibers
Assignee: Vickers Zimmer AG
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Filing: 1967-11-01
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Granted: 1971-02-16
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Expires: 1987-11-01
Abstract
Abstract THE PRESENT DISCLOSURE PROVIDES A NOVEL APPARATUS FOR THE MANUFACTURE OF FIBERS OR THE LIKE FROM A MELT OR A SOLUTION OF A SYNTHETIC POLYMER. THE NOVEL APPARATUS OF THE INVENTION COMPRISES PRE-FORMED SPINNING UNITS WHICH ARE JOINTABLE TO FORM A COMPLETE STRUCTURAL UNIT CAPABLE OF FORMING SAID FIBERS FROM A MELT OF SYNTHETIC POLYMER. THE PRE-FORMED SPINNING UNITS COMPRISE A SPINNING BLOCK, AT LEAST ONE SPINNING PUMP AND AT LEAST ONE SPINNING NOZZLE CASING. THE ELEMENTS OF A SPINNING UNIT ARE JOINED TOGETHER SO THAT SEVERAL SPINNING UNITS CAN BE COMBINED IN THE MANNER OF BUILDING BLOCKS.
Inventors
- 👤 Karl Lehner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:45
CPC Classifications
D; D01; D01D; D01D4/00; B; B29; B29C; B29C48/00; B29C48/03; B29C48/05; B29C48/25; B29C48/30; B29C48/32; B29C48/335; B29C48/345; B29C48/36; B29C48/50; B29C48/695; B29C48/78; B29C48/80; B29C48/83; B29C48/832; B29C48/86; B29C48/865; D01D1/00; D01D1/06; B29C48/06; B29C48/07; B29C48/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |