US2990671A
Expired / Lapsed
US
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Multiple vortex pneumatic twister and method of producing alternate twist yarn
Assignee: EIDP Inc
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Filing: 1959-03-17
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Granted: 1961-07-04
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Expires: 1979-03-17
Abstract
No abstract record available.
Inventors
- 👤 Jr William Wallar Bunting
- 👤 Lorenzo Cenzato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:32
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/16; D02G1/02; D02G1/0206; D02G1/024; D02G1/04; D02G3/00; D02G3/22; D02G3/26; D02G3/28; D02G3/286; D02J; D02J1/00; D02J1/08; D02J1/22; D02J1/222; D02J1/229; Y; Y10; Y10S; Y10S57/00; Y10S57/908
Claims Analysis
Total Claims: 0
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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) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |