Granted Patent
Utility
US 6,013,225 · App. 09/284,409
Surface densification of machine components made by powder metallurgy
Inventors:
Terry M. Cadle, Timothy E. Geiman, Joel H. Mandel, Michael S. Gray
Patented Case
View Patent ↗
Granted: Jan 11, 2000
Filed: Apr 12, 1999
Inventors
Terry M. Cadle
Timothy E. Geiman
Joel H. Mandel
Michael S. Gray
Assignee (at issue)
Zenith Sintered Products, 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.