Granted Patent
Utility
US 5,708,294 · App. 08/605,497
Lead frame having oblique slits on a die pad
Inventor:
Keiji Toriyama
Patented Case
View Patent ↗
Granted: Jan 13, 1998
Filed: Feb 26, 1996
Inventor
Keiji Toriyama
Assignee (at issue)
NEC 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.