Granted Patent
Utility
US 5,999,064 · App. 09/120,751
Heated temperature variable attenuator
Inventors:
Robert J. Blacka, David P. Markman, Joseph Mazzochette
Patented Case
View Patent ↗
Granted: Dec 7, 1999
Filed: Jul 23, 1998
Inventors
Robert J. Blacka
David P. Markman
Joseph Mazzochette
Assignee (at issue)
EMC Tech Co., Ltd.
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.