Patents Represented by Law Firm Schiller & Pondiscio
  • Basic dyeing
    Patent number: 3971625
    Abstract: A dye system in which materials are bathed in a dyebath formed of a basic dye dissolved in a body of liquid ammonia.
    Type: Grant
    Filed: March 16, 1973
    Date of Patent: July 27, 1976
    Assignee: Kane and Company
    Inventor: Hans Ortheil, deceased