Granted Patent
Utility
US 6,757,403 · App. 09/805,148
Electroacoustic transducers
Inventors:
Kiyoshi Urushibata, Tomonari Suzuki
Patented Case
View Patent ↗
Granted: Jun 29, 2004
Filed: Mar 14, 2001
Inventors
Kiyoshi Urushibata
Tomonari Suzuki
Assignee (at issue)
STAR MICRONICS 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.