Granted Patent
Utility
US 6,647,630 · App. 09/776,441
Stud punch tool
Inventors:
James H. Lucas, William F. Nordlin
Patented Case
View Patent ↗
Granted: Nov 18, 2003
Filed: Feb 2, 2001
Inventors
James H. Lucas
William F. Nordlin
Assignee (at issue)
GREENLEE TEXRON INC.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.