Granted Patent
Utility
US 6,797,997 · App. 10/609,478
Semiconductor memory apparatus
Inventor:
Yoji Hata
Patented Case
View Patent ↗
Granted: Sep 28, 2004
Filed: Jul 1, 2003
Inventor
Yoji Hata
Assignee (at issue)
UMC Japan
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.