Novel brush filaments
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 7, 1989
Grant Date -
N/A
app pub date -
Aug 10, 1987
filing date -
Aug 10, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
First Claim
Family
International Classification(s)
Cited Art Landscape
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