US2953424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aftertreatment of tows consisting of continuous artificial filaments
Assignee: Bayer AG
•
Filing: 1954-12-13
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Granted: 1960-09-20
•
Expires: 1974-12-13
Abstract
No abstract record available.
Inventors
- 👤 Schurmann Max-Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:47
CPC Classifications
D; D01; D01F; D01F2/00; D01F2/02; D01F2/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
THE PROCESS OF CONTINUOUSLY AFTERTREATING A TOW CONSISTING OG A BUNDLE OF FILAMENTS OF REGENERATED CELLULOSE AND HAVING A THICKNESS OF FROM ABOUT 30,000 TO ABOUT 100,000 DENIERS WITH A TITER OF THE INDIVIDUAL FILAMENTS OF FROM ABOUT 2 TO ABOUT 6 DENIERS, WHICH PROCESS COMPRISES CONTINUOUSLY FEEDING SAID TOW ONTO A MOVING ENDLESS SIEVE BAND AND DIRECTING THEREAGAINST VERTICAL JETS OF LIQUID UNDER A SUPERATMOSPHERIC PRESSURE OF FROM ABOUT 0.3-1.5 ATMOSPHERES GAUGE THROUGH NOZZLES HAVING A PLURAITY OF HOLES WITH A DIAMETER OF FROM AOBUT 0.3 TO 0.8 MILLIMETER, SAID NOZZLES BEING DISPOSED AT A DISTANCE OF 5 TO 15 CENTIMETERS FROM SAID SIEVE.
Claim 2
Dependent Claim
105 words
THE PROCESS OF CONTINUOUSLY AFTERTREATING A TOW CONSISTING OG A BUNDLE OF FILAMENTS OF REGENERATED CELLULOSE AND HAVING A THICKNESS OF FROM ABOUT 30,000 TO ABOUT 100,000 DENIERS WITH A TITER OF THE INDIVIDUAL FILAMENTS OF FROM ABOUT 2 TO ABOUT 6 DENIERS, WHICH PROCESS COMPRISES CONTINUOUSLY FEEDING SAID TOW ONTO A MOVING ENDLESS SIEVE BAND AND DIRECTING THEREAGAINST VERTICAL JETS OF LIQUID UNDER A SUPERATMOSPHERIC PRESSURE OF FROM ABOUT 0.3-1.5 ATMOSPHERES GAUGE THROUGH NOZZLES HAVING A PLURAITY OF HOLES WITH A DIAMETER OF FROM AOBUT 0.3 TO 0.8 MILLIMETER, SAID NOZZLES BEING DISPOSED AT A DISTANCE OF 5 TO 15 CENTIMETERS FROM SAID SIEVE.
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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) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |