Granted Patent
Utility
US 4,574,585 · App. 06/699,596
Compressor bleed valve
Inventor:
Francis E. Conn
Patented Case
View Patent ↗
Granted: Mar 11, 1986
Filed: Feb 8, 1985
Inventor
Francis E. Conn
Assignee (at issue)
General Motors 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.