US2695835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making rough surfaced filaments
Assignee: EIDP Inc
•
Filing: 1949-12-13
•
Granted: 1954-11-30
•
Expires: 1969-12-13
Abstract
No abstract record available.
Inventors
- 👤 Hare Weston Andrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:05
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/22; D02J1/228; D01; D01F; D01F6/00; D01F6/02; D01F6/18; Y; Y10; Y10S; Y10S264/00; Y10S264/47
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
76 words
A PROCESS FOR THE PRODUCTION OF ROUGH SURFACED FILAMENTS OF SYNTHETIC POLYMERS WHICH COMPRISES SPINNING A MELTED PLASTICIZED POLYMER; REMOVING BY VOLATILIZATION A PORTION OF THE PLASTICIZER IN THE RESULTANT FILAMENTS SO THAT THE OUTER PART HAS LESS PLASTICIZER THAN THE CORE; COLD DRAWING THE RESULTANT PLASTICIZED FILAMENTS AT A TEMPERATURE OF 0* C. TO 40* C. TO PRODUCE A ROUGHENED SURFACE ON SAID FILAMENTS; AND THEREAFTER REMOVING THE PLASTICIZER FROM THE RESULTANT ROUGH SURFACED FILAMENTS.
References Cited (Backward Citations)
US2354744A
Cited
US2426728A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-29 | 1958-05-31 | 1958-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-29 | 1962-05-31 | 1962-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-29 | 1966-05-31 | 1966-11-30 | $7700.00 | Window Closed / Lapsed |