Granted Patent
Utility
US 5,539,253 · App. 08/309,016
Resin-sealed semiconductor device
Inventor:
Fumio Nagaune
Patented Case
View Patent ↗
Granted: Jul 23, 1996
Filed: Sep 20, 1994
Inventor
Fumio Nagaune
Assignee (at issue)
FUJI ELECTRIC 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.