Granted Patent
Utility
US 5,298,080 · App. 07/978,751
Method of detecting a missing pad for a floor polishing tool
Inventor:
Peter W. Von Vett
Patented Case
View Patent ↗
Granted: Mar 29, 1994
Filed: Nov 19, 1992
Inventor
Peter W. Von Vett
Assignee (at issue)
Windsor 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.