Granted Patent
Utility
US 5,706,684 · App. 08/538,528
Metalworking process
Inventors:
Deli Gong, Kevin H. Tucker
Patented Case
View Patent ↗
Granted: Jan 13, 1998
Filed: Oct 3, 1995
Inventors
Deli Gong
Kevin H. Tucker
Assignee (at issue)
Cincinnatti Milacron 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.