Granted Patent
Utility
US 6,789,452 · App. 10/305,687
Increased torque applying pliers
Inventor:
Yi Chuan Tseng
Patented Case
View Patent ↗
Granted: Sep 14, 2004
Filed: Nov 26, 2002
Inventor
Yi Chuan Tseng
Assignee (at issue)
AWI Acquisition Company
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.