Granted Patent
Utility
US 4,483,513 · App. 06/406,344
Pin connection of a shaft to closure member of a rotary valve
Inventor:
Anthony C. Summers
Patented Case
View Patent ↗
Granted: Nov 20, 1984
Filed: Aug 9, 1982
Inventor
Anthony C. Summers
Assignee (at issue)
Federal Signal Corporation
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.