Granted Patent
Utility
US 5,784,754 · App. 08/874,535
Surface cleaning appliance
Inventors:
Michael J. Roden, Steven S. Wickert
Patented Case
View Patent ↗
Granted: Jul 28, 1998
Filed: Jun 13, 1997
Inventors
Michael J. Roden
Steven S. Wickert
Assignee (at issue)
Professional Chemicals 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.