US3315328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing fabrics
Assignee: EIDP Inc
•
Filing: 1963-08-05
•
Granted: 1967-04-25
•
Expires: 1983-08-05
Abstract
No abstract record available.
Inventors
- 👤 Salim M Ibrahim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:01
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; D02G3/32; D02G3/328; D02G3/324
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A PROCESS FOR PREPARING ELASTIC FABRICS WHICH COMPRISES: (A) STRETCHING AN ELASTIC YARN CONTAINING SPANDEX FILAMENTS A PREDETERMINED AMOUNT APPROACHING BUT NOT EXCEEDING THE ELASTIC LIMIT OF SAID ELASTIC YARN; (B) TEMPORARILY HEAT-SETTING UNDER MILD HEAT-SETTING CONDITIONS TO INITIALLY STABILIZE THE ELASTIC COMPONENT BUT PERMIT RETRACTION OF FROM 30% TO 60% WHEN THE FINAL FABRIC IS SUBSEQUENTLY HEAT-RELAXED, SAID ELASTIC YARN IN ITS EXTENDED CONDITION; (C) PLYING SAID HEAT-SET ELASTIC YARN WITH AN INELASTIC YARN WHILE MAINTAINING SAID ELASTIC YARN IN A FULLY EXTENDED CONDITION; (D) INCORPORATING SAID PLIED YARN IN A FABRIC WHILE MAINTAINING SAID PLIED YARN IN ITS FULLY EXTENDED STATE; AND (E) HEAT-RELAXING SAID FABRIC TO PERMIT SAID ELASTIC YARN TO CONTRACT.
Claim 2
Dependent Claim
115 words
A PROCESS FOR PREPARING ELASTIC FABRICS WHICH COMPRISES: (A) STRETCHING AN ELASTIC YARN CONTAINING SPANDEX FILAMENTS A PREDETERMINED AMOUNT APPROACHING BUT NOT EXCEEDING THE ELASTIC LIMIT OF SAID ELASTIC YARN; (B) TEMPORARILY HEAT-SETTING UNDER MILD HEAT-SETTING CONDITIONS TO INITIALLY STABILIZE THE ELASTIC COMPONENT BUT PERMIT RETRACTION OF FROM 30% TO 60% WHEN THE FINAL FABRIC IS SUBSEQUENTLY HEAT-RELAXED, SAID ELASTIC YARN IN ITS EXTENDED CONDITION; (C) PLYING SAID HEAT-SET ELASTIC YARN WITH AN INELASTIC YARN WHILE MAINTAINING SAID ELASTIC YARN IN A FULLY EXTENDED CONDITION; (D) INCORPORATING SAID PLIED YARN IN A FABRIC WHILE MAINTAINING SAID PLIED YARN IN ITS FULLY EXTENDED STATE; AND (E) HEAT-RELAXING SAID FABRIC TO PERMIT SAID ELASTIC YARN TO CONTRACT.
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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) | 1970-04-24 | 1970-10-24 | 1971-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-24 | 1974-10-24 | 1975-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-24 | 1978-10-24 | 1979-04-25 | $7700.00 | Window Closed / Lapsed |