Patent US3234624A successfully refreshed from Google Patents.
US3234624A
Expired / Lapsed
US
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Method and apparatus for making limited stretch bulked yarn
Assignee: Joseph Bancroft and Sons Co
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Filing: 1963-02-27
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Granted: 1966-02-15
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Expires: 1983-02-27
Abstract
No abstract record available.
Inventors
- 👤 Ewart H Shattuck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:05
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
84 words
APPARATUS FOR PRODUCING A LIMITED STRETCH BULKED YARN COMPRISING A STUFFER CRIMPER HAVING A CRIMPING CHAMBER AND FEED ROLLS ADAPTED TO FEED YARN THERETO FOR CRIMPING, MEANS FFEDING A YARN END TO SAID FEED ROLLS AT A PREDETERMINED RATE, AND MEANS FEEDING A SECOND YARN END TO SAID FEED ROLLS FOR PLYING WITH SAID FIRST END AT A DIFFERENT PREDETERMINED RATE WHEREBY ONE OF SAID ENDS IS OVERFED WITH RESPECT TO THE OTHER OF SAID ENDS AND BECOMES MORE HIGHLY BULKED IN SAID CRIMPER.
References Cited (Backward Citations)
GB861327A
Cited
US2901884A
Cited
US3000060A
Cited
US3096558A
Cited
US3095630A
Cited
US3076307A
Cited
US3013379A
Cited
US3104516A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |