Granted Patent
Utility
US 5,182,918 · App. 07/887,887
Refrigerant recovery system
Inventors:
Kenneth W. Manz, Christopher M. Powers
Patented Case
View Patent ↗
Granted: Feb 2, 1993
Filed: May 26, 1992
Inventors
Kenneth W. Manz
Christopher M. Powers
Assignee (at issue)
SPX 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.