Granted Patent
Utility
US 6,480,075 · App. 09/539,520
Surface acoustic wave filter
Inventors:
Masayuki Fujita, Toshiharu Tanaka
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Mar 30, 2000
Inventors
Masayuki Fujita
Toshiharu Tanaka
Assignees (at issue)
SANYO ELECTRIC CO., LTD.
Sanyo Electronic Components 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.