Granted Patent
Utility
US 6,550,098 · App. 09/944,768
Extraction cleaner with tank retention
Inventors:
Kenneth L. Roberts, Jeffrey A. Hall, Eric R. Metzger, Charles A. Reed, Jr.
Patented Case
View Patent ↗
Granted: Apr 22, 2003
Filed: Aug 31, 2001
Inventors
Kenneth L. Roberts
Jeffrey A. Hall
Eric R. Metzger
Charles A. Reed, Jr.
Assignee (at issue)
BISSELL Homecare, Inc.
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.