Granted Patent
Utility
US 5,439,638 · App. 08/092,727
Method of making flowable tungsten/copper composite powder
Inventors:
David L. Houck, Nelson E. Kopatz, Muktesh Paliwal, Sanjay Sampath
Patented Case
View Patent ↗
Granted: Aug 8, 1995
Filed: Jul 16, 1993
Inventors
David L. Houck
Nelson E. Kopatz
Muktesh Paliwal
Sanjay Sampath
Assignee (at issue)
OSRAM SYLVANIA 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.