Patent US3404522A successfully refreshed from Google Patents.
US3404522A
Expired / Lapsed
US
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Process and apparatus for making voluminous yarn
Assignee: Celanese Corp
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Filing: 1965-04-06
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Granted: 1968-10-08
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Expires: 1985-04-06
Abstract
No abstract record available.
Inventors
- 👤 Reiner G Stoll
- 👤 Hans R Stucki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:19
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/02; D02G1/0206; D02G1/0233
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
APPARATUS FOR PRODUCING A VOLUMINOUS YARN, COMPRISING A YARN SUPPLY, MEANS FOR PLASTICIZING THE YARN, A FALSE TWIST SPINDLE FOR TWISTING THE YARN AND REMOVING TWIST FROM THE YARN, MEANS FOR FORWARDING THE YARN AT A GIVEN RATE AFTER TWIST, IS REMOVED THEREFROM, SECOND MEANS FOR FORWARDING THE YARN AT A RATE BY BETWEEN 10 AND 50% SLOWER THAN SAID FIRST FORWARDING MEANS, AND YARN TAKE-UP MEANS.
Claim 2
Dependent Claim
67 words
APPARATUS FOR PRODUCING A VOLUMINOUS YARN, COMPRISING A YARN SUPPLY, MEANS FOR PLASTICIZING THE YARN, A FALSE TWIST SPINDLE FOR TWISTING THE YARN AND REMOVING TWIST FROM THE YARN, MEANS FOR FORWARDING THE YARN AT A GIVEN RATE AFTER TWIST, IS REMOVED THEREFROM, SECOND MEANS FOR FORWARDING THE YARN AT A RATE BY BETWEEN 10 AND 50% SLOWER THAN SAID FIRST FORWARDING MEANS, AND YARN TAKE-UP MEANS.
References Cited (Backward Citations)
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GB526635A
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US2227910A
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US2199411A
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US2343299A
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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) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |