Granted Patent
Utility
US 5,623,743 · App. 08/659,019
Mobile surface scrubber solution recovery system
Inventors:
Jack L. Burgoon, Donald E. Line
Patented Case
View Patent ↗
Granted: Apr 29, 1997
Filed: Jun 4, 1996
Inventors
Jack L. Burgoon
Donald E. Line
Assignee (at issue)
Clarke Industries, 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.