Granted Patent
Utility
US 4,778,104 · App. 06/881,722
Temperature responsive line valve
Inventor:
Stephen M Fisher, II
Patented Case
View Patent ↗
Granted: Oct 18, 1988
Filed: Jul 3, 1986
Inventor
Stephen M Fisher, II
Assignee (at issue)
Memory Metals, 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.