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:
Sep. 20, 1977
Filed:
Jan. 09, 1976
Applicant:
Inventor:
James L O'Rourke, Detroit, MI (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B43K / ; B43M / ;
U.S. Cl.
CPC ...
401134 ; 401184 ; 401186 ; 401287 ;
Abstract
A toothbrush having a brushing unit and a dentifrice containing cartridge unit. The cartridge unit is shaped to permit it to be comfortably held in the hand and has a squeezable wall for the purpose of expelling dentifrice from the dentifrice-containing chamber therein. A dentifrice passage extending from the dentifrice chamber to the brushing unit is normally closed by a valve which opens by the force of the dentifrice when the cartridge is squeezed. The cartridge has a check valve to allow air to replace used up dentifrice.