Granted Patent
Utility
US 4,352,368 · App. 06/260,385
Plumbing apparatus
Inventor:
Gerald Landgarten
Patented Case
View Patent ↗
Granted: Oct 5, 1982
Filed: May 4, 1981
Inventor
Gerald Landgarten
Assignee (at issue)
Sanitary-Dash Manufacturing Company, 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.