Granted Patent
Utility
US 4,363,463 · App. 05/804,598
Plunger seal assembly and method of making the same
Inventor:
William T. Moon, Jr.
Patented Case
View Patent ↗
Granted: Dec 14, 1982
Filed: Jun 8, 1977
Inventor
William T. Moon, Jr.
Assignee (at issue)
ROBERTSHAW CONTROLS PRIVATE LIMITED
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.