Granted Patent
Utility
US 5,083,913 · App. 07/688,414
Mix head bushing seal
Inventor:
Ronald M. Marsilio
Patented Case
View Patent ↗
Granted: Jan 28, 1992
Filed: Apr 22, 1991
Inventor
Ronald M. Marsilio
Assignee (at issue)
American Standard 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.