Granted Patent
Utility
US 5,452,396 · App. 08/192,383
Optical processing furnace with quartz muffle and diffuser plate
Inventor:
Bhushan L. Sopori
Patented Case
View Patent ↗
Granted: Sep 19, 1995
Filed: Feb 7, 1994
Inventor
Bhushan L. Sopori
Assignee (at issue)
Midwest Research Institute, 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.