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US3700491A Expired / Lapsed US ⏱️ 0.0 years remaining

Coated synthetic organic polymer fiber

Assignee: EIDP Inc
•
Filing: 1970-04-08
•
Granted: 1972-10-24
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Expires: 1990-04-08
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Abstract

Abstract WHEREIN A IS AN ALKYLENE RADICAL HAVING A VALENCE OF Y AND MAY CONTAIN AT LEAST HYDROXYL SUBSTITUENT, X IS AN INTEGER FROM 4 TO 60, INCLUSIVE, Z IS AN INTEGER FROM 0 TO 40, INCLUSIVE, Y IS AN INTEGER OF AT LEAST 2, AND THE RATIO OF X TO Z IS GREATER THAN ABOUT 3 TO 2 AND A COMPOSITION COMPRISING AT LEAST ONE POLYEPOXIDE OF THE ABOVE FORMULA AND AT LEAST ONE OTHER POLYEPOXIDE FORMED AS A REACTION PRODUCT OF EPICHLORHYDRIN AND A POLYHYDROXY COMPOUND CONTAINED AT LEAST THREE HYDROXYL GROUPS ARE PREPARED. THEY ARE SUITABLE FOR MINIMIZING THE ACCUMULATION OF CHARGE OF STATIC ELECTRICITY ON A SYNTHETIC SHAPED STRUCTURE. THEY ALSO CAUSE THE SHAPED STRUCTURE TO ATTRACT FLUORESCENT WHITENING AGENTS FROM DETERGENT SOLUTIONS, ARE FAST TO BLEACHING, AND DO NOT CAUSE STAINING DURING DRY CLEANING. (OXIRANYL-CH2-(O-CH2-CH2)Z-(O-CH(-CH3)-CH2)X-O)Y-A A POLYOXPROPYLENE GLYCOL POLYEPOXIDE OF THE FORMULA

Inventors

  • 👤 Karl Altau

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 17:29
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/10; D06M13/11; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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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) 1975-10-24 1976-04-24 1976-10-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-10-24 1980-04-24 1980-10-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-10-24 1984-04-24 1984-10-24 $7700.00 Window Closed / Lapsed

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