Granted Patent
Utility
US 5,795,995 · App. 08/821,857
Leak tester and leak testing method
Inventors:
Kiyoshige Shimaoka, Mauri Ukonmaanaho
Patented Case
View Patent ↗
Granted: Aug 18, 1998
Filed: Mar 21, 1997
Inventors
Kiyoshige Shimaoka
Mauri Ukonmaanaho
Assignee (at issue)
MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
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.