The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 27, 2001
Filed:
Mar. 24, 1998
Maxim D. Persidsky, San Francisco, CA (US);
Don LeRoy Thatcher, Fairfield, CA (US);
Other;
Abstract
Toothbrush having a peripheral cushioning bumper for preventing impact injury to the teeth and gums of a person using it. The bumper consists of a body of resilient material mounted in a peripheral groove in the side edge of the head of the brush. In some disclosed embodiments, the resilient body is a ring that passes through a tunnel at the base of the head, which prevents the ring from being dislodged and lost or swallowed. In one such embodiment, the head of the brush is formed in two sections, and the bumper is an O-ring which is placed in the groove before the two sections are joined together. In another, the ring is molded in place on the brush.