
US Patent No: 4,524,478
Number of patents in Portfolio can not be more than 2000
Toothbrush
Stats
-
Jun 25, 1985
Issued date -
Jun 17, 1983
filing date -
06/505,433
serial no -
Expired
status
Importance
Abstract
A toothbrush consisting of two brusheads extending outwardly from a common elongated labeled handle. Brusheads are connected to the handle by means of curved neck portions extending in parallel directions, yet holding bristle arrangements in opposing directions and at opposite and equal angles of forty-five degrees with respect to the longitudinal axis of the handle. Bristle arrangements are specifically constructed to most effectively cover, contact, and clean one-half of each tooth surface area naturally available for toothbrush access. Bristle arrangements consisting of three portions corresponding to three specific areas of one-half of tooth and gumline of user. The opposite one-half of the tooth and gumline being cleaned by using the reverse end of the toothbrush, the identification of which being found on the labeled handle.
First Claim
Related Publications
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
|
|
|||
| 4,185,349 Toothbrush contoured to the human mouth | 48 | 1977 | |