Granted Patent
Utility
US 5,065,595 · App. 07/622,755
Thermostatic expansion valve
Inventors:
G. Thomas Seener, Joseph H. Heffner
Patented Case
View Patent ↗
Granted: Nov 19, 1991
Filed: Dec 5, 1990
Inventors
G. Thomas Seener
Joseph H. Heffner
Assignee (at issue)
Sporlan Valve Company
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.