Patent · US Active

Method for producing a toothbrush having an inner cavity

US9756931B2 · kind B2 · utility

2Cited by
24References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 21, 2012
Grant dateSep 12, 2017
Priority date—
Expiry dateAug 23, 2034

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB29L2031/425
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

Methods for producing toothbrush handles having an inner cavity are provided.

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