Granted Patent
Utility
US 6,134,899 · App. 09/273,213
Refrigerant recovery and recharging system with automatic air purging
Inventors:
William Brown, Walter D. Murray, Gary P. Murray
Patented Case
View Patent ↗
Granted: Oct 24, 2000
Filed: Mar 19, 1999
Inventors
William Brown
Walter D. Murray
Gary P. Murray
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.