Granted Patent
Utility
US 6,655,659 · App. 10/071,498
One-piece sanitary seat ring
Inventor:
Joseph Burke
Patented Case
View Patent ↗
Granted: Dec 2, 2003
Filed: Feb 8, 2002
Inventor
Joseph Burke
Assignee (at issue)
Fisher Controls International LLC
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.