Granted Patent
Utility
US 4,137,546 · App. 05/842,322
Stamped lead frame for semiconductor packages
Inventor:
John M. Frusco
Patented Case
View Patent ↗
Granted: Jan 30, 1979
Filed: Oct 14, 1977
Inventor
John M. Frusco
Assignee (at issue)
The Plessey Company Limited
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.