US2978788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating synthetic yarn
Assignee: EIDP Inc
•
Filing: 1955-07-13
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Granted: 1961-04-11
•
Expires: 1975-07-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert L Keefe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:07
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/16; D02G1/164
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
THE PROCESS OF PREPARING BULKY YARN WHICH COMPRISES SUBJECTING A CONTINUOUS SYNTHETIC FILAMENT YARN HAVING A DRY NON-TACKY, SOLID, WATER-SENSITIVE SIZE ON ITS SURFACE TO A HIGH VELOCITY JET OF AIR UNDER CONDITIONS SUCH THAT THE INDIVIDUAL FILAMENTS THEREOF ARE SEPARATED AND WHIPPED ABOUT TO FORM INDIVIDUAL FILAMENT CONVOLUTIONS, AND THEREAFTER SUBJECTING THE YARN TO A WARM, HUMID ATMOSPHERE UNTIL THE SIZE BECOMES TACKY.
Claim 2
Dependent Claim
64 words
THE PROCESS OF PREPARING BULKY YARN WHICH COMPRISES SUBJECTING A CONTINUOUS SYNTHETIC FILAMENT YARN HAVING A DRY NON-TACKY, SOLID, WATER-SENSITIVE SIZE ON ITS SURFACE TO A HIGH VELOCITY JET OF AIR UNDER CONDITIONS SUCH THAT THE INDIVIDUAL FILAMENTS THEREOF ARE SEPARATED AND WHIPPED ABOUT TO FORM INDIVIDUAL FILAMENT CONVOLUTIONS, AND THEREAFTER SUBJECTING THE YARN TO A WARM, HUMID ATMOSPHERE UNTIL THE SIZE BECOMES TACKY.
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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) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |