Granted Patent
Utility
US 5,202,951 · App. 07/710,709
Mass flow rate control system and method
Inventor:
Edward F. Doyle
Patented Case
View Patent ↗
Granted: Apr 13, 1993
Filed: Jun 5, 1991
Inventor
Edward F. Doyle
Assignee (at issue)
Gas Research Institute
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.