Patent US2448593A successfully refreshed from Google Patents.
Patent US3146574A successfully refreshed from Google Patents.
US3146574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bulky yarn and process for preparing same
Assignee: EIDP Inc
•
Filing: 1961-08-08
•
Granted: 1964-09-01
•
Expires: 1981-08-08
Abstract
No abstract record available.
Inventors
- 👤 Earnshaw John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:58
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/18
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
54 words
A BULKY EXTENSIBLE YARN COMPRISED OF A MAJOR PROPORTION OF SYNTHETIC FIBERS SET WITH A RANDOM THREE-DIMENSIONAL CRIMP AND NOT MORE THAN 2% TO 20% OF SUBSTANTIALLY UNCRIMPED SYTHETIC FIBERS, SAID SUBSTANTIALLY UNCRIMPED FIBERS BEING DISPLACED FROM EACH OTHER SUBSTANTIALLY CENTRALLY WITHINTHE YARN, SAID YARN HAVING A RECOVERABLE ELONGATION OF AT LEAST ABOUT 20%.
References Cited (Backward Citations)
US2450948A
Cited
US2504523A
Cited
US2701406A
Cited
US2810281A
Cited
US2789340A
Cited
US2985940A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |