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Patent US3724199A successfully refreshed from Google Patents.
US3724199A
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Process for making continuous filament heather yarn
Assignee: Monsanto Co
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Filing: 1970-04-20
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Granted: 1973-04-03
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Expires: 1990-04-20
Abstract
Abstract Doubled spun yarns having different dye receptivities are drawn simultaneously to the same degree, plied by filament intermingling, and wound on a package. This produces a heather type yarn.
Inventors
- 👤 L Armstrong
- 👤 W Rollings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:31
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; D02G3/34; D02G3/346; D02G3/26; D02G3/28; D02J; D02J1/00; D02J1/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
16 words
The process defined in claim 1, wherein the draw point in said draw zone is localized.
References Cited (Backward Citations)
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US3400194A
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US3286321A
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US3357655A
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US3364537A
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US3460336A
Cited
US3534540A
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US3426406A
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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) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |