US3143764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for the thermal treatment of synthetic fibers and filaments
Assignee: Hoechst AG
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Filing: 1962-07-06
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Granted: 1964-08-11
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Expires: 1982-07-06
Abstract
No abstract record available.
Inventors
- 👤 Wildegger Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:52
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/22; D02J1/224; D02J13/00; D02J13/003; F; F26; F26B; F26B13/00; F26B13/001
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A DEVICE FOR THE THERMAL TREATMENT OF SYNTHETIC FIBERS AND FILAMENTS COMPRISING A PIVOTALBE SUPPORTED METAL CORE, HETING MEANS CONNECTED WITH SAID CORE FOR HEATING SAID CORE, A REMOVABLE METAL SLEEVE MEMBER WHICH IS SUPPORTED AROUND SAID METAL CORE BEING ROTATABLE AROUND SAID CORE AND WHOSE SURFACE SERVES AS RUNNING SURFACE FOR THE FILAMENTS, A CAP SURROUNDING SAID METAL SLEEVE MEMBER IN WHICH CAP SAID SLEEVE MEMBER IS ROTATABLE, AND A LONGITUDINAL SLIT IN SAID CAP WHICH PROVIDES A RUNNING SURFACE ON SAID PORTION OF THE SLEEVE MEMBER EXPOSED BY SAID SLIT AGAINST AND OVER WHICH SAID FILAMENTS TRAVEL.
Claim 2
Independent Claim
99 words
A DEVICE FOR THE THERMAL TREATMENT OF SYNTHETIC FIBERS AND FILAMENTS COMPRISING A PIVOTALBE SUPPORTED METAL CORE, HETING MEANS CONNECTED WITH SAID CORE FOR HEATING SAID CORE, A REMOVABLE METAL SLEEVE MEMBER WHICH IS SUPPORTED AROUND SAID METAL CORE BEING ROTATABLE AROUND SAID CORE AND WHOSE SURFACE SERVES AS RUNNING SURFACE FOR THE FILAMENTS, A CAP SURROUNDING SAID METAL SLEEVE MEMBER IN WHICH CAP SAID SLEEVE MEMBER IS ROTATABLE, AND A LONGITUDINAL SLIT IN SAID CAP WHICH PROVIDES A RUNNING SURFACE ON SAID PORTION OF THE SLEEVE MEMBER EXPOSED BY SAID SLIT AGAINST AND OVER WHICH SAID FILAMENTS TRAVEL.
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) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |