Granted Patent
Utility
US 6,687,925 · App. 10/103,255
Load resistant floor drain assembly
Inventor:
Michael W. Minnick
Patented Case
View Patent ↗
Granted: Feb 10, 2004
Filed: Mar 21, 2002
Inventor
Michael W. Minnick
Assignee (at issue)
OATEY CO.
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.