Granted Patent
Utility
US 4,470,265 · App. 06/376,293
Refrigerant charging system
Inventor:
Joseph Correia
Patented Case
View Patent ↗
Granted: Sep 11, 1984
Filed: May 10, 1982
Inventor
Joseph Correia
Assignee (at issue)
Gerlach Industries
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.