Patent · US Expired

Ball support

USD401987S · kind S · design

9Cited by
4References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 21, 1997
Grant dateDec 1, 1998
Priority date
Expiry dateDec 1, 2012

Classification

  • Technology area (CPC —)General

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