Granted Patent
Utility
US 4,566,477 · App. 06/659,026
Fluid flow control apparatus
Inventors:
Charles A. Barker, Jim L. Rau
Patented Case
View Patent ↗
Granted: Jan 28, 1986
Filed: Oct 9, 1984
Inventors
Charles A. Barker
Jim L. Rau
Assignee (at issue)
TRW Limited
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.