Granted Patent
Utility
US 4,984,597 · App. 07/431,268
Apparatus for rinsing and drying surfaces
Inventors:
Christopher F. McConnell, Alan E. Walter
Patented Case
View Patent ↗
Granted: Jan 15, 1991
Filed: Nov 3, 1989
Inventors
Christopher F. McConnell
Alan E. Walter
Assignee (at issue)
CFM Technologies Research Associates
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.