US3020699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of crepe yarns and fabrics
Assignee: EIDP Inc
•
Filing: 1957-07-30
•
Granted: 1962-02-13
•
Expires: 1977-07-30
Abstract
No abstract record available.
Inventors
- 👤 Nijkamp Derk Jan Everhard
- 👤 Gerrit Jan Van Lochem
- 👤 Vos Jan Gradus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:33
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/16; D02G1/165; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24446
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
55 words
A METHOD OF PRODUCING YARN SUITABLE FOR CREPE FABRIC WHICH COMPRISES TWISTING TOGETHER AT LEAST TWO CONTINUOUS MULTIFILAMENT NYLON THREADS HAVING A TWIST OF LESS THAN 150 TURNS PER METER AND DIFFERENT SHRINKAGE PROPERTIES INTO A COMPOSITE YARN HAVING A TWIST OF FROM 300 TO 1000 TURNS PER METER, DISPLACING THE FILAMENTS OF THE COM-
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) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |