US2678286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the treatment of keratinous fiber and resulting article
Assignee: EIDP Inc
•
Filing: 1949-08-24
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Granted: 1954-05-11
•
Expires: 1969-08-24
Abstract
No abstract record available.
Inventors
- 👤 Walter M Bruner
- 👤 James C Lehr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:39
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/227
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A PROCESS FOR THE TREATMENT OF A KERATINOUS FIBER WHICH COMPRISES SHRINKPROOFING A KERATINOUS FIBER BY IMPREGNATING IT WITH A SOLUTION CONTAINING 1 TO 20% BY WEIGHT OF A CHLORINATED HIGH MOLECULAR WEIGHT POLYMER OF ETHYLENE AND 0.005 TO 0.5% OF A FIXATIVE OF THE CLASS CONSISTING OF ORGANIC COMPOUNDS CONTAINING POLYHYDROXY, POLYMERCAPTO, POLYAMINO AND POLYAMIDE GROUPS, AND THEREAFTER HEATING THE THUS IMPREGNATED FIBER AT A TEMPERATURE BETWEEN 75 AND 250* C.
Claim 2
Dependent Claim
72 words
A PROCESS FOR THE TREATMENT OF A KERATINOUS FIBER WHICH COMPRISES SHRINKPROOFING A KERATINOUS FIBER BY IMPREGNATING IT WITH A SOLUTION CONTAINING 1 TO 20% BY WEIGHT OF A CHLORINATED HIGH MOLECULAR WEIGHT POLYMER OF ETHYLENE AND 0.005 TO 0.5% OF A FIXATIVE OF THE CLASS CONSISTING OF ORGANIC COMPOUNDS CONTAINING POLYHYDROXY, POLYMERCAPTO, POLYAMINO AND POLYAMIDE GROUPS, AND THEREAFTER HEATING THE THUS IMPREGNATED FIBER AT A TEMPERATURE BETWEEN 75 AND 250* C.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
US2503252A
Cited
US2507699A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-10 | 1957-11-09 | 1958-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-10 | 1961-11-09 | 1962-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-10 | 1965-11-09 | 1966-05-11 | $7700.00 | Window Closed / Lapsed |