Granted Patent
Utility
US 4,794,431 · App. 06/854,425
Package for photoactivated semiconductor device
Inventor:
Khee Park
Patented Case
View Patent ↗
Granted: Dec 27, 1988
Filed: Apr 21, 1986
Inventor
Khee Park
Assignee (at issue)
International Rectifier Corporation
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.