Granted Patent
Utility
US 6,485,678 · App. 09/596,964
Wear-resistant iron base alloys
Inventors:
Xuecheng Liang, Gary R. Strong
Patented Case
View Patent ↗
Granted: Nov 26, 2002
Filed: Jun 20, 2000
Inventors
Xuecheng Liang
Gary R. Strong
Assignee (at issue)
Winsert Technologies, 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.