US3003222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlled relaxation of freshly drawn nylon
Assignee: EIDP Inc
•
Filing: 1958-11-17
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Granted: 1961-10-10
•
Expires: 1978-11-17
Abstract
No abstract record available.
Inventors
- 👤 Pitzl Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:19
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/22; D02J1/229; D01; D01F; D01F6/00; D01F6/58; D01F6/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A PROCESS COMPRISING ELONGATING A SUBSTANTIALLY UNDRAWN POLYAMIDE YARN TO SEVERAL TIMES ITS INITIAL LENGTH FOLLOWED IMMEDIATELY BY RELAXING THE YARN IN AN AMOUNT BETWEEN ABOUT 7% AND ABOUT 12%, BASED ON THE LENGTH OF THE ELONGATED YARN PRIOR TO RELAXATION, AND THEN WINDING THE RELAXED YARN INTO A STABLE PACKAGE AT A TENSION LOW ENOUGH TO AVOID SUBSTANTIAL ELONGATION OF THE YARN DURING WINDING ON THE PACKAGE.
Claim 2
Dependent Claim
68 words
A PROCESS COMPRISING ELONGATING A SUBSTANTIALLY UNDRAWN POLYAMIDE YARN TO SEVERAL TIMES ITS INITIAL LENGTH FOLLOWED IMMEDIATELY BY RELAXING THE YARN IN AN AMOUNT BETWEEN ABOUT 7% AND ABOUT 12%, BASED ON THE LENGTH OF THE ELONGATED YARN PRIOR TO RELAXATION, AND THEN WINDING THE RELAXED YARN INTO A STABLE PACKAGE AT A TENSION LOW ENOUGH TO AVOID SUBSTANTIAL ELONGATION OF THE YARN DURING WINDING ON THE PACKAGE.
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) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |