Granted Patent
Utility
US 5,139,049 · App. 07/614,312
Refrigeration system service adapter
Inventors:
Jon Jensen, Steven M. Knowles, Robert A. Laipply
Patented Case
View Patent ↗
Granted: Aug 18, 1992
Filed: Nov 15, 1990
Inventors
Jon Jensen
Steven M. Knowles
Robert A. Laipply
Assignee (at issue)
Aeroquip 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.