Patent · US Expired

Back drilling threaded bit

USD382887S · kind S · design

9Cited by
5References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 31, 1996
Grant dateAug 26, 1997
Priority date
Expiry dateAug 26, 2011

Classification

  • Technology area (CPC —)General

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