Granted Patent
Utility
US 6,310,423 · App. 09/533,666
Surface acoustic wave device
Inventors:
Naoki Tanaka, Morio Ogura
Patented Case
View Patent ↗
Granted: Oct 30, 2001
Filed: Mar 23, 2000
Inventors
Naoki Tanaka
Morio Ogura
Assignee (at issue)
SANYO ELECTRIC CO., LTD.
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.