Granted Patent
Utility
US 4,907,039 · App. 07/211,330
Semiconductor device
Inventor:
Shinichi Chikaki
Patented Case
View Patent ↗
Granted: Mar 6, 1990
Filed: Jun 24, 1988
Inventor
Shinichi Chikaki
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.