Patent · US Expired

Method of treating hair with heat and a cap which provides a signal regarding treatment

US7033581B2 · kind B2 · utility

2Cited by
14References
18Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJul 10, 2003
Grant dateApr 25, 2006
Priority date
Expiry dateNov 9, 2023

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T442/2525
  • WIPO fieldOther consumer goods
  • WIPO sectorOther fields

Abstract

A hair covering which comprises a woven or nonwoven substrate comprising synthetic or natural materials, which are impregnated, or coated, or both, with a mutable dye is described.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.