Granted Patent
Utility
US 4,464,476 · App. 06/389,518
Gas injection control
Inventor:
Victor A. Varady
Patented Case
View Patent ↗
Granted: Aug 7, 1984
Filed: Jun 17, 1982
Inventor
Victor A. Varady
Assignee (at issue)
UOP 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.