Patent US3234725A successfully refreshed from Google Patents.
US3234725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making elastic yarn
Assignee: Rohm and Haas Co
•
Filing: 1963-07-09
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Granted: 1966-02-15
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Expires: 1983-07-09
Abstract
No abstract record available.
Inventors
- 👤 Storti Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:13
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; D02G3/32; D02G3/328
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A PROCESS COMPRISING ELONGATING AN ELASTIC THREAD AND AT LEAST TWO TWISTED CONTINUOUS FILAMENT, MULTIFILAMENT TEXTURED YARNS, PART OF SAID YARNS HAVING AN S-TWIST TORQUE AND THE REMAINDER OF SAID YARN HAVING A Z-TWIST TORQUE, AND PLYING SAID THREAD AND SAID TEXTURED YARNS WHILE ELONGATED.
Claim 2
Dependent Claim
45 words
A PROCESS COMPRISING ELONGATING AN ELASTIC THREAD AND AT LEAST TWO TWISTED CONTINUOUS FILAMENT, MULTIFILAMENT TEXTURED YARNS, PART OF SAID YARNS HAVING AN S-TWIST TORQUE AND THE REMAINDER OF SAID YARN HAVING A Z-TWIST TORQUE, AND PLYING SAID THREAD AND SAID TEXTURED YARNS WHILE ELONGATED.
References Cited (Backward Citations)
US2971322A
Cited
US3090277A
Cited
US3069883A
Cited
US3068636A
Cited
US3115745A
Cited
US3166885A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |