US3355413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyester fibers resistant to resoiling during laundering
Assignee: Eastman Kodak Co
•
Filing: 1966-10-14
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Granted: 1967-11-28
•
Expires: 1986-10-14
Abstract
No abstract record available.
Inventors
- 👤 Kiefer John Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:27
CPC Classifications
D; D01; D01F; D01F6/00; D01F6/88; D01F6/92; C; C08; C08L; C08L67/00; C08L67/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A PROCESS FOR PREPARING A SOIL RESISTANT POLYESTER FIBER, SAID PROCESS COMPRISING (A) MIXING A POLYESTER POWDER WITH FROM ABOUT 0.25 TO ABOUT 5 PERCENTY BY WEIGHT, BASED ON THE WEIGHT OF SAID POLYESTER, OF A FATTY ACID ESTER OF A POLY(ETHYLENE GLYCOL), SAID FATAY ACID HAVING 10 TO 22 CARBON ATOMS, SAID POLY(ETHYLENE GLYCOL) HAVING A MOLECULAR WEIGHT OF AT LEAST 2,000 AND SAID POLYESTER BEING PREPARED FROM AT LEAST ONE DIOL AND AT LEAST ONE DIBASIC ACID, (B) MELT SPINNING SAID SOIL RESISTANT POLYESTER FIBER THEREFROM.
Claim 2
Dependent Claim
88 words
A PROCESS FOR PREPARING A SOIL RESISTANT POLYESTER FIBER, SAID PROCESS COMPRISING (A) MIXING A POLYESTER POWDER WITH FROM ABOUT 0.25 TO ABOUT 5 PERCENTY BY WEIGHT, BASED ON THE WEIGHT OF SAID POLYESTER, OF A FATTY ACID ESTER OF A POLY(ETHYLENE GLYCOL), SAID FATAY ACID HAVING 10 TO 22 CARBON ATOMS, SAID POLY(ETHYLENE GLYCOL) HAVING A MOLECULAR WEIGHT OF AT LEAST 2,000 AND SAID POLYESTER BEING PREPARED FROM AT LEAST ONE DIOL AND AT LEAST ONE DIBASIC ACID, (B) MELT SPINNING SAID SOIL RESISTANT POLYESTER FIBER THEREFROM.
References Cited (Backward Citations)
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Cited
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Cited
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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) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |