US3697314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for treating a yarn with foam
Assignee: Bleiche AG
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Filing: 1970-07-29
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Granted: 1972-10-10
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Expires: 1990-07-29
Abstract
Abstract A FOAM IS CONTINUOUSLY MADE IN A HOLLOW BODY BY PRESSING A GASEOUS MEDIUM INTO A LIQUID. THE FOAM IS MADE FINER BY PASSAGE THROUGH AT LEAST ONE POROUS MEMBER, AND THEN CONTINUOUSLY APPLIED TO A YARN MOVING ACROSS AN OUTLET FOR THE FOAM AND THROUGH A FOAM AGGLOMERATION FORMING AT THE OUTLET. THE FOAM-FORMING LIQUID IS A YARNFINISHING AGENT, SUCH AS A SMOOTHING POLISH, A STIFFENING AGENT, OR A DYE.
Inventors
- 👤 Vilem Stritzko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:28
CPC Classifications
D; D06; D06B; D06B5/00; D06B5/02; D06B5/06; D06B19/00; D06B19/0088; D06B19/0094; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |