Granted Patent
Utility
US 5,226,006 · App. 07/700,515
Write protection circuit for use with an electrically alterable non-volatile memory card
Inventors:
Ping-Wei Wang, Ching-Shi Jeng
Patented Case
View Patent ↗
Granted: Jul 6, 1993
Filed: May 15, 1991
Inventors
Ping-Wei Wang
Ching-Shi Jeng
Assignee (at issue)
Silicon Storage Technology, Inc.
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.