Granted Patent
Utility
US 5,467,595 · App. 08/196,210
Valve means
Inventor:
Wilfred W. Smith
Patented Case
View Patent ↗
Granted: Nov 21, 1995
Filed: Mar 11, 1994
Inventor
Wilfred W. Smith
Assignee (at issue)
Dunlop GmbH
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.