Granted Patent
Utility
US 5,794,126 · App. 08/543,875
Emergency positioning indicating radio buoy having a thermally insulated frequency standard
Inventors:
Masayuki Tsutsumi, Kazuhiko Ono
Patented Case
View Patent ↗
Granted: Aug 11, 1998
Filed: Oct 19, 1995
Inventors
Masayuki Tsutsumi
Kazuhiko Ono
Assignee (at issue)
Toyo Communication Equipment 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.