Granted Patent
Utility
US 4,881,200 · App. 07/261,287
Erasable programmable read only memory device
Inventor:
Takahiko Urai
Patented Case
View Patent ↗
Granted: Nov 14, 1989
Filed: Oct 24, 1988
Inventor
Takahiko Urai
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.