Patents Assigned to Gillette Canada Inc
  • Novel brush filaments
    Patent number: 4802255
    Abstract: Novel, improved filaments for brushes. The filaments include a colored region provided by a dye colorant and the colored region is adapted to provide a color intensity which can change in response to increased use of the filament to provide a signal indicative of filament wear. The filaments are particularly useful in toothbrushes.
    Type: Grant
    Filed: August 10, 1987
    Date of Patent: February 7, 1989
    Assignee: Gillette Canada Inc.
    Inventors: Miklos M. Breuer, Joseph A. Hanak
  • Toothbrush
    Patent number: D305385
    Type: Grant
    Filed: September 2, 1988
    Date of Patent: January 9, 1990
    Assignee: Gillette of Canada Inc.
    Inventor: Peter Schneider
  • Toothbrush
    Patent number: D305386
    Type: Grant
    Filed: July 13, 1987
    Date of Patent: January 9, 1990
    Assignee: Gillette Canada Inc.
    Inventors: Dieter Rams, Jurgen Greubel, Peter Schneider