Granted Patent
Utility
US 5,970,866 · App. 08/897,655
Printing machine with sound reducing apparatus
Inventor:
Eiji Okawa
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: Jul 21, 1997
Inventor
Eiji Okawa
Assignee (at issue)
Tohoku Ricoh 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.