Granted Patent
Utility
US 4,944,160 · App. 07/473,066
Thermostatic expansion valve with electronic controller
Inventors:
Peter J. Malone, Michael B. Thompson, Robert J. Torrence, Marvin F. Gaudette
Patented Case
View Patent ↗
Granted: Jul 31, 1990
Filed: Jan 31, 1990
Inventors
Peter J. Malone
Michael B. Thompson
Robert J. Torrence
Marvin F. Gaudette
Assignee (at issue)
Eaton Corporation
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.