Granted Patent
Utility
US 6,023,795 · App. 09/057,993
Washbasin drain assembly
Inventors:
Jochen Potter, Arthur J. McGowan, Jr., Nathan Hemmer
Patented Case
View Patent ↗
Granted: Feb 15, 2000
Filed: Apr 9, 1998
Inventors
Jochen Potter
Arthur J. McGowan, Jr.
Nathan Hemmer
Assignee (at issue)
Evac International Oy
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.