US3102278A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Washing fibers with falling liquid film
Assignee: Bayer AG
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Filing: 1960-06-15
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Granted: 1963-09-03
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Expires: 1980-06-15
Abstract
No abstract record available.
Inventors
- 👤 Reichle Alfred
- 👤 Dulfer Ewald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:53
CPC Classifications
D; D01; D01D; D01D10/00; D01D10/04; D01D10/049; D01D10/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A PROCESS FOR THE AFTER TREATMENT OF FRESHLY SPUN TENDER FIBROUS MATERIAL WITH A WASHING LIQUID WHICH COMPRISES SUBSTANTIALLY CONTINUOUSLY PASSING THE FRESHLY SPUN TENDER FIBERS ACROSS A SUBSTANTIALLY HORIZONTAL PATH OF TRAVEL, GUIDING A THIN CONTIGUOUS SHEET OF WASHING LIQUID DOWN TOWARD THE FIBERS IN A VERTICALLY INCLINED DIRECTION, FREELY DIRECTING SAID SHEET OF LIQUID TOWARD THE FIBERS, CONTACTING THE FIBERS WITH THE LIQUID AT SUBSTANTIALLY THE POINT OF DIRECTIONAL CHANGE OF THE LIQUID FROM ANGULAR TO VERTICAL DIRECTION OF FLOW AND FLOWING THE LIQUID HORIZONTALLY ALONG THE FIBERS INCREASING THE APPARENT CROSS-SECTIONAL THICKNESS OF THE COMPOSITE FIBERS.
Claim 2
Dependent Claim
99 words
A PROCESS FOR THE AFTER TREATMENT OF FRESHLY SPUN TENDER FIBROUS MATERIAL WITH A WASHING LIQUID WHICH COMPRISES SUBSTANTIALLY CONTINUOUSLY PASSING THE FRESHLY SPUN TENDER FIBERS ACROSS A SUBSTANTIALLY HORIZONTAL PATH OF TRAVEL, GUIDING A THIN CONTIGUOUS SHEET OF WASHING LIQUID DOWN TOWARD THE FIBERS IN A VERTICALLY INCLINED DIRECTION, FREELY DIRECTING SAID SHEET OF LIQUID TOWARD THE FIBERS, CONTACTING THE FIBERS WITH THE LIQUID AT SUBSTANTIALLY THE POINT OF DIRECTIONAL CHANGE OF THE LIQUID FROM ANGULAR TO VERTICAL DIRECTION OF FLOW AND FLOWING THE LIQUID HORIZONTALLY ALONG THE FIBERS INCREASING THE APPARENT CROSS-SECTIONAL THICKNESS OF THE COMPOSITE FIBERS.
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) | 1966-09-02 | 1967-03-04 | 1967-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-02 | 1971-03-04 | 1971-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-02 | 1975-03-04 | 1975-09-03 | $7700.00 | Window Closed / Lapsed |