Granted Patent
Utility
US 6,463,230 · App. 09/933,213
Office machine including a blower having a blower noise reducing device
Inventor:
John A. Wargo
Patented Case
View Patent ↗
Granted: Oct 8, 2002
Filed: Aug 20, 2001
Inventor
John A. Wargo
Assignee (at issue)
Xerox Corporation
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.