Granted Patent
Utility
US 4,874,014 · App. 07/135,939
Flow control manifold
Inventors:
Robert W. Grant, William M. Jenson
Patented Case
View Patent ↗
Granted: Oct 17, 1989
Filed: Dec 21, 1987
Inventors
Robert W. Grant
William M. Jenson
Assignee (at issue)
FSI INTERNATIONAL, INC.
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.