Granted Patent
Utility
US 6,140,738 · App. 09/394,718
Surface acoustic wave device
Inventors:
Kenji Inoue, Katsuo Sato
Patented Case
View Patent ↗
Granted: Oct 31, 2000
Filed: Sep 13, 1999
Inventors
Kenji Inoue
Katsuo Sato
Assignee (at issue)
TDK 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.