US3639573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making a multicolored split polyolefin yarn
Assignee: Avisun Corp
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Filing: 1967-09-12
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Granted: 1972-02-01
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Expires: 1987-09-12
Abstract
Abstract A MULTICOLORED SPLIT YARN USABLE IN DECORATIVE FABRICS IS PRODUCED BY CONCURRENTLY EXTRUDIG AT LEAST TWO LAYERS OF POLYMERIC MATERIAL WHICH ARE ADAPTED TO BE DIFFERENTLY COLORED, THE LAYERS BEING JOINED INTO A COMPOSITE FILM-LIKE WEB WHICH IS THEN SLIT INTO PARALLEL TAPES AND STRETCHORIENTED TO PRODUCE MONO-FILAMENT YARNS OF HIGH STRENGTH, THE YARNS BEING FIBRILLATED WHEREBY EACH YARN IS COMPOSED OF A CLUSTER OF FINE MULTICOLORED FILAMENTS WHOSE EDGES ARE EXPOSED AS WELL AS ON THE FACES THEREOF.
Inventors
- 👤 Morton I Port
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:35
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/42; D01D5/426; B; B29; B29C; B29C48/00; B29C48/03; B29C48/07; B29C48/08; B29C48/16; B29C48/18; B29C48/21; B29C48/25; B29C48/30; B29C48/305; B29C48/307; D01D5/28; D01D5/30; D01D5/32; B29C48/05; B29C48/09; B29C48/10; Y; Y10; Y10S; Y10S264/00; Y10S264/47
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) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |