Patent · US Expired

Toothbrush

US4152806A · kind A · utility

9Cited by

2References

4Claims

0Family size

Assignee

Blendax-Werke R. Schneider GmbH & Co. · DE

Inventors

Helmut Raaf · Schlangenbad, DE
Oskar Heumann · Wiesbaden, DE

Key dates

Filing date	May 9, 1978
Grant date	May 8, 1979
Priority date	—
Expiry date	May 9, 1998

Classification

Technology area (CPC A)Human Necessities
CPC primaryA46B2200/1066
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

A toothbrush with means for adjustment of the bristle length including a moveable slotted or perforated plate arranged over the bristle holder and with bristles passing through the slots or perforations said plate being movable up and down the bristle length by means of a slide mechanism or a screw connection.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.