Granted Patent
Utility
US 6,498,733 · App. 09/797,421
Electronic device and shield
Inventor:
Osamu Murasawa
Patented Case
View Patent ↗
Granted: Dec 24, 2002
Filed: Mar 1, 2001
Inventor
Osamu Murasawa
Assignee (at issue)
SONY COMPUTER ENTERTAINMENT 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.