Granted Patent
Utility
US 5,550,784 · App. 08/534,270
Semiconductor memory device with synchronous dram whose speed grade is not limited
Inventor:
Yasuhiro Takai
Patented Case
View Patent ↗
Granted: Aug 27, 1996
Filed: Sep 26, 1995
Inventor
Yasuhiro Takai
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.