Granted Patent
Utility
US 6,799,480 · App. 10/371,896
Screwdriver with torque measuring scale and method of making same
Inventors:
James M. Walsh, Chad E. Ryshkus
Patented Case
View Patent ↗
Granted: Oct 5, 2004
Filed: Feb 24, 2003
Inventors
James M. Walsh
Chad E. Ryshkus
Assignee (at issue)
Pilling Weck Incorporated
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.