Granted Patent
Utility
US 4,597,514 · App. 06/546,022
Sliding gate valves and components thereof
Inventor:
Anthony Thrower
Patented Case
View Patent ↗
Granted: Jul 1, 1986
Filed: Oct 27, 1983
Inventor
Anthony Thrower
Assignee (at issue)
USS Engineers and Consultants, 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.