Granted Patent
Utility
US 5,205,084 · App. 07/824,635
Flat-walled apparatus and housing for treating horizontal surfaces
Inventor:
Jerry W. Roberts
Patented Case
View Patent ↗
Granted: Apr 27, 1993
Filed: Jan 23, 1992
Inventor
Jerry W. Roberts
Assignee (at issue)
Nelco Manufacturing Corp.
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.