Granted Patent
Utility
US 4,431,380 · App. 06/385,618
Scroll compressor with controlled suction unloading using coupling means
Inventor:
Robert E. Utter
Patented Case
View Patent ↗
Granted: Feb 14, 1984
Filed: Jun 7, 1982
Inventor
Robert E. Utter
Assignee (at issue)
The Trane Company
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.