Granted Patent
Utility
US 4,970,733 · App. 07/329,722
Method and apparatus for protecting the finished surfaces of sanitary fixtures
Inventors:
Michael J. Cocciadiferro, Robert J. De Serio
Patented Case
View Patent ↗
Granted: Nov 20, 1990
Filed: Mar 14, 1989
Inventors
Michael J. Cocciadiferro
Robert J. De Serio
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.