US3038239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crimpable composite filament
Assignee: EIDP Inc
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Filing: 1959-03-16
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Granted: 1962-06-12
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Expires: 1979-03-16
Abstract
No abstract record available.
Inventors
- 👤 Gordon M Moulds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:47
CPC Classifications
D; D01; D01F; D01F8/00; D01F8/04; D01D; D01D5/00; D01D5/28; D01D5/30; D01D5/32; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2929; Y10T428/2931
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
A COMPOSITE FILAMENT CRIMPABLE FROM A STRAIGHT STATE UPON RELAXATION BY SHRINKING COMPRISED OF AT LEAST TWO SYNTHETIC HYDROPHOBIC POLYMERIC COMPONENTS, SAID COMPONENTS BEING ECCENTRICALLY DISPOSED TOWARDS EACH OTHER IN DISTINCT ZONES WITH ADJOINING SURFACES BEING IN INTIMATE ADHERING CONTACT WITH EACH OTHER, EACH OF SAID COMPONENTS EXTENDING THROUGHOUT THE LENGTH OF SAID FILAMENT, ONE OF SAID COMPONENTS HAVING A SHRINKABILITY GREATER THAN ANY OF SAID OTHER COMPONENTS, AND ONE OF SAID COMPONENTS HAVING ADMIXED THEREIN AN AMOUNT UP TO ABOUT 50% OF ITS WEIGHT OF A SYNTHETIC POLYMER HAVING A WATER ABSORPTION OF AT LEAST 6% AND HAVING A REVERSIBLE LENGTH CHANGE AFTER SHRINKAGE EVIDENCED BY AN INCREASE IN LENGTH GREATER THAN ANY OF SAID OTHER COMPONENTS WHEN TREATED WITH A SWELLING AGENT WITH SAID COMPONENT SUBSTANTIALLY RETURNING TO ITS ORIGINAL LENGTH UPON REMOVAL OF SAID SWELLING AGENT, SAID FILAMENT ASSUMING A CRIMPED STATED UPON RELAXATION BY SHRINKING AND EXHIBITING CRIMP REVERSIBILITY CHARACTERIZED BY SQUIRMING OF SAID FILAMENT UPON TREATMENT WITH AND UPON REMOVAL OF SAID SWELLING AGENT AFTER SAID SHRINKING.
Claim 2
Dependent Claim
172 words
A COMPOSITE FILAMENT CRIMPABLE FROM A STRAIGHT STATE UPON RELAXATION BY SHRINKING COMPRISED OF AT LEAST TWO SYNTHETIC HYDROPHOBIC POLYMERIC COMPONENTS, SAID COMPONENTS BEING ECCENTRICALLY DISPOSED TOWARDS EACH OTHER IN DISTINCT ZONES WITH ADJOINING SURFACES BEING IN INTIMATE ADHERING CONTACT WITH EACH OTHER, EACH OF SAID COMPONENTS EXTENDING THROUGHOUT THE LENGTH OF SAID FILAMENT, ONE OF SAID COMPONENTS HAVING A SHRINKABILITY GREATER THAN ANY OF SAID OTHER COMPONENTS, AND ONE OF SAID COMPONENTS HAVING ADMIXED THEREIN AN AMOUNT UP TO ABOUT 50% OF ITS WEIGHT OF A SYNTHETIC POLYMER HAVING A WATER ABSORPTION OF AT LEAST 6% AND HAVING A REVERSIBLE LENGTH CHANGE AFTER SHRINKAGE EVIDENCED BY AN INCREASE IN LENGTH GREATER THAN ANY OF SAID OTHER COMPONENTS WHEN TREATED WITH A SWELLING AGENT WITH SAID COMPONENT SUBSTANTIALLY RETURNING TO ITS ORIGINAL LENGTH UPON REMOVAL OF SAID SWELLING AGENT, SAID FILAMENT ASSUMING A CRIMPED STATED UPON RELAXATION BY SHRINKING AND EXHIBITING CRIMP REVERSIBILITY CHARACTERIZED BY SQUIRMING OF SAID FILAMENT UPON TREATMENT WITH AND UPON REMOVAL OF SAID SWELLING AGENT AFTER SAID SHRINKING.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |