US3156607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lobed filament
Assignee: EIDP Inc
•
Filing: 1961-05-31
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Granted: 1964-11-10
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Expires: 1981-05-31
Abstract
No abstract record available.
Inventors
- 👤 Donald R Strachan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:00
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/253; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2973
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A CONTINUOUS TEXTILE FILAMENT HAVING A SUBSTANTIALLY UNIFORM OBLONG CROSS SECTION ALONG ITS LENGTH PREPARED FROM A SYNTHETIC FIBER-FORMING POLYMER, SAID CROSS SECTION HAVING A MAJOR TO MINOR AXIS RATIO WITHIN THE RANGE 1.3 TO 1.8, TIP RADIUS RATIOS WITHIN THE RANGE 0.15 TO 0.6, AND FROM SIX TO EIGHT LOBES INTERCONNECTED BY SMOOTH CONTINUOUS LINES WHICH DEFINES ITS PERIPHERY, SAID LOBES AND SAID INTERCONNECTING LINES BEING ARRANGED ABOUT THE PERIPHERY OF SAID CROSS SECTION TO PROVIDE SYMMETRY ABOUT AT LEAST ONE OF SAID AXES.
Claim 2
Dependent Claim
85 words
A CONTINUOUS TEXTILE FILAMENT HAVING A SUBSTANTIALLY UNIFORM OBLONG CROSS SECTION ALONG ITS LENGTH PREPARED FROM A SYNTHETIC FIBER-FORMING POLYMER, SAID CROSS SECTION HAVING A MAJOR TO MINOR AXIS RATIO WITHIN THE RANGE 1.3 TO 1.8, TIP RADIUS RATIOS WITHIN THE RANGE 0.15 TO 0.6, AND FROM SIX TO EIGHT LOBES INTERCONNECTED BY SMOOTH CONTINUOUS LINES WHICH DEFINES ITS PERIPHERY, SAID LOBES AND SAID INTERCONNECTING LINES BEING ARRANGED ABOUT THE PERIPHERY OF SAID CROSS SECTION TO PROVIDE SYMMETRY ABOUT AT LEAST ONE OF SAID AXES.
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) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |