Granted Patent
Utility
US 5,934,091 · App. 08/960,521
Refrigerant recovery and recycling system
Inventors:
Arnold M. Hanson, Thomas D. Chandler
Patented Case
View Patent ↗
Granted: Aug 10, 1999
Filed: Oct 31, 1997
Inventors
Arnold M. Hanson
Thomas D. Chandler
Assignee (at issue)
Scepter Manufacturing, LLC.
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.