Granted Patent
Utility
US 5,238,219 · App. 07/850,524
Thermostatic expansion valve
Inventors:
Michael A. Noelke, J. George Leimbach
Patented Case
View Patent ↗
Granted: Aug 24, 1993
Filed: Mar 13, 1992
Inventors
Michael A. Noelke
J. George Leimbach
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.