Patent US3785750A successfully refreshed from Google Patents.
Patent US3092892A successfully refreshed from Google Patents.
US3092892A
Expired / Lapsed
US
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Composite filament
Assignee: EIDP Inc
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Filing: 1961-04-10
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Granted: 1963-06-11
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Expires: 1981-04-10
Abstract
No abstract record available.
Inventors
- 👤 Jr James Francis Ryan
- 👤 Tichenor Robert Lauren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:14
CPC Classifications
D; D01; D01F; D01F8/00; D01F8/04; D01F8/08; Y; Y10; Y10S; Y10S264/00; Y10S264/26; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2925; Y10T428/2933; Y10T428/2964; Y10T428/2967
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
COMPOSITE FILAMENTS COMPRISING AT LEAST TWO DRY SPUN LINEAR FIBER FORMING SYNTHETIC POLYMERS ARRANGED IN ECCENTRIC RELATIONSHIP, CHARACTERIZED IN THAT THE FILAMENTS HAVE 10 TO 18 HELICAL CRIMPS PER INCH OF EXTENDED LENGTH AND AN EQUILIBRIUM CRIMP REVERSIBILITY TO 25 TO 50%.
Claim 2
Dependent Claim
42 words
COMPOSITE FILAMENTS COMPRISING AT LEAST TWO DRY SPUN LINEAR FIBER FORMING SYNTHETIC POLYMERS ARRANGED IN ECCENTRIC RELATIONSHIP, CHARACTERIZED IN THAT THE FILAMENTS HAVE 10 TO 18 HELICAL CRIMPS PER INCH OF EXTENDED LENGTH AND AN EQUILIBRIUM CRIMP REVERSIBILITY TO 25 TO 50%.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |