Granted Patent
Utility
US 6,421,868 · App. 09/675,551
Adjustable handle assembly for floor care machines
Inventor:
Loi X. Tran
Patented Case
View Patent ↗
Granted: Jul 23, 2002
Filed: Sep 27, 2000
Inventor
Loi X. Tran
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.