US3154906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for false-twisting thermoplastic yarn
Assignee: Onderzoekings Instituut Research
•
Filing: 1960-11-22
•
Granted: 1964-11-03
•
Expires: 1980-11-22
Abstract
No abstract record available.
Inventors
- 👤 Leendert Van Assendelft
- 👤 Ijsbrand James Watt
- 👤 Noordenbos Pieter Klaas
- 👤 Wormsbecher Hendrik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:10
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/02; D02G1/04; D02G1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
IN AN APPARATUS FOR IMPARTING A CURL TO YARN, A FALSETWISTING DEVICE COMPRISING A FLEXIBLE ENDLESS BELT, MEANS FOR DRIVING SAID ENDLESS BELT, AND MEANS FOR GUIDING THE YARN TO BE FALSE-TWISTED INTO CONTACT WITH SAID ENDLESS BELT, A PORTION OF SAID YARN GUIDING MEANS DEFINING A SURFACE, WHICH SURFACE IS POSITIONED ADJACENT SAID ENDLESS BELT ON THE SIDE OF SAID BELT OPPOSITE TO THAT WHICH IS CONTACTING SAID YARN SO THAT SAID BELT IS PRECLUDED FROM BENDING UNDER PRESSURE EXERTED ON SAID BELT BY SAID YARN.
Claim 2
Dependent Claim
87 words
IN AN APPARATUS FOR IMPARTING A CURL TO YARN, A FALSETWISTING DEVICE COMPRISING A FLEXIBLE ENDLESS BELT, MEANS FOR DRIVING SAID ENDLESS BELT, AND MEANS FOR GUIDING THE YARN TO BE FALSE-TWISTED INTO CONTACT WITH SAID ENDLESS BELT, A PORTION OF SAID YARN GUIDING MEANS DEFINING A SURFACE, WHICH SURFACE IS POSITIONED ADJACENT SAID ENDLESS BELT ON THE SIDE OF SAID BELT OPPOSITE TO THAT WHICH IS CONTACTING SAID YARN SO THAT SAID BELT IS PRECLUDED FROM BENDING UNDER PRESSURE EXERTED ON SAID BELT BY SAID YARN.
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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) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |