Toothbrushes
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 9, 1993
Grant Date -
N/A
app pub date -
Dec 13, 1990
filing date -
Nov 20, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A toothbrush includes a plurality of bristle holders spring-urged outwardly from the brush head. In one described embodiment, the springs are produced by a planar strip of elastic material stamped with a plurality of spirally-extending slits pressed out of the plane of the strip to produce a plurality of helically-extending springs underlying each of the bristle holders. In a second described embodiment, the springs are in deformable bellows-shaped elements each underlying one of the bristle holders. In some described embodiments, the brush head is pivotally mounted to the handle.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully