US2861319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intermittent core filaments
Assignee: EIDP Inc
•
Filing: 1956-12-21
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Granted: 1958-11-25
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Expires: 1976-12-21
Abstract
No abstract record available.
Inventors
- 👤 Alvin L Breen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:19
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/24; D01D5/247; D01D5/28; D01D5/30; D01D5/34; Y; Y10; Y10S; Y10S425/00; Y10S425/217; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2929; Y10T428/2933; Y10T428/2935; Y10T428/2964; Y10T428/2967; Y10T428/2969
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A COMPOSITE FILAMENT COMPRISING, AS ONE COMPONENT, A SHEATH OF FIBER-FORMING POLYMER, AND, AS A SECOND COMPONENT, A CORE HAVING LESS EXTENSIBILITY THAN SAID FIBER-FORMING POLYMER, SAID CORE BEING FORMED IN SECTIONS WITHIN THE SHEATH AND HAVING VOIDS FORMED BETWEEN SAID CORE SECTIONS, SAID CORE AND SAID VOIDS BEING ENCLOSED BY SAID SHEATH WHEREBY TO IMPART TO SAID SHEATH A SMOOTH EXTERIOR.
Claim 2
Dependent Claim
62 words
A COMPOSITE FILAMENT COMPRISING, AS ONE COMPONENT, A SHEATH OF FIBER-FORMING POLYMER, AND, AS A SECOND COMPONENT, A CORE HAVING LESS EXTENSIBILITY THAN SAID FIBER-FORMING POLYMER, SAID CORE BEING FORMED IN SECTIONS WITHIN THE SHEATH AND HAVING VOIDS FORMED BETWEEN SAID CORE SECTIONS, SAID CORE AND SAID VOIDS BEING ENCLOSED BY SAID SHEATH WHEREBY TO IMPART TO SAID SHEATH A SMOOTH EXTERIOR.
References Cited (Backward Citations)
US2238694A
Cited
US2347525A
Cited
US2492425A
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US2674025A
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US2695835A
Cited
US2612679A
Cited
US2736946A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-24 | 1962-05-26 | 1962-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-24 | 1966-05-26 | 1966-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-24 | 1970-05-26 | 1970-11-25 | $7700.00 | Window Closed / Lapsed |