Patent US4824446A successfully refreshed from Google Patents.
Patent US3259479A successfully refreshed from Google Patents.
US3259479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making curly composite fibers
Assignee: Owens Corning
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Filing: 1962-06-22
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Granted: 1966-07-05
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Expires: 1982-06-22
Abstract
No abstract record available.
Inventors
- 👤 Ralph L Tiede
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:52
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/01; C03B37/02; C03B37/022; C03B37/023; C03B37/075; C03B37/0753; D; D02; D02G; D02G1/00; D02G1/18; C03B2203/00; C03B2203/02; C03B2203/06; C03C; C03C2213/00; C03C2213/04; Y; Y10; Y10S; Y10S425/00; Y10S425/217; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2924; Y10T428/2925; Y10T428/2933; Y10T428/2964
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
THE METHOD OF MAKING A CURLY COMPOSITE TEXTILE FIBER COMPRISING THE STEPS OF SELECTING TWO COMPARTIBLE HEAT SOFTENABLE MATERIALS HAVNG COEFFICIENTS OF EXPANSION SUFFICIENTLY DIFFERENT SO THAT COMBINATION OF SAID MATERIALS INTO A FIBER IN AN ADHERED SIDE-BY-SIDE RELATION WHILE IN A MOLTEN STATE WILL ON COOLING CAUSE THE FIBER TO CURL BACK ON ITSELF TO FORM A SERIES OF LOOPS ALONG THE LENGTH OF THE FIBER TO IMPART A GENERALLY HELICAL CONFIGURATION THERETO; FLOWING MOLTEN FORMS OF EACH OF SAID MATERIALS FROM SEPARATE ORIFICES INTO A COMMON FIBER FORMING CONE IN CONTACT WITH EACH OTHER IN A SIDE-BY-SIDE RELATION; ATTENUATING SAID COMMON FIBER FORMING CONE INTO A TEXTILE FIBER THEREBY MAINTAINING, IN COMBINATION WITH THE SURFACE TENSION OF THE COMMON STREAM THUS FORMED, THE ALIGNMENT OF SAID MATERIALS IN SAID SIDE-BY-SIDE RELATION DURING SOLIDIFICATION THAT WAS ESTABLISHED AT CONTACT IN SAID FIBER FORMING CONE; AND COOLING SAID ATTENUATED TEXTILE FIBER TO CAUSE SAID DIFFERENT COEFFICIENTS OF EXPANSION TO CURL THE FIBER BACK ON ITSELF TO FORM A SERIES LOOPS.
Claim 2
Independent Claim
170 words
THE METHOD OF MAKING A CURLY COMPOSITE TEXTILE FIBER COMPRISING THE STEPS OF SELECTING TWO COMPARTIBLE HEAT SOFTENABLE MATERIALS HAVNG COEFFICIENTS OF EXPANSION SUFFICIENTLY DIFFERENT SO THAT COMBINATION OF SAID MATERIALS INTO A FIBER IN AN ADHERED SIDE-BY-SIDE RELATION WHILE IN A MOLTEN STATE WILL ON COOLING CAUSE THE FIBER TO CURL BACK ON ITSELF TO FORM A SERIES OF LOOPS ALONG THE LENGTH OF THE FIBER TO IMPART A GENERALLY HELICAL CONFIGURATION THERETO; FLOWING MOLTEN FORMS OF EACH OF SAID MATERIALS FROM SEPARATE ORIFICES INTO A COMMON FIBER FORMING CONE IN CONTACT WITH EACH OTHER IN A SIDE-BY-SIDE RELATION; ATTENUATING SAID COMMON FIBER FORMING CONE INTO A TEXTILE FIBER THEREBY MAINTAINING, IN COMBINATION WITH THE SURFACE TENSION OF THE COMMON STREAM THUS FORMED, THE ALIGNMENT OF SAID MATERIALS IN SAID SIDE-BY-SIDE RELATION DURING SOLIDIFICATION THAT WAS ESTABLISHED AT CONTACT IN SAID FIBER FORMING CONE; AND COOLING SAID ATTENUATED TEXTILE FIBER TO CAUSE SAID DIFFERENT COEFFICIENTS OF EXPANSION TO CURL THE FIBER BACK ON ITSELF TO FORM A SERIES LOOPS.
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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) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |