Granted Patent
Utility
US 4,387,413 · App. 06/220,127
Semiconductor apparatus with integral heat sink tab
Inventor:
Patrick D. Griffis
Patented Case
View Patent ↗
Granted: Jun 7, 1983
Filed: Dec 24, 1980
Inventor
Patrick D. Griffis
Assignee (at issue)
RCA 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.