Granted Patent
Utility
US 5,877,476 · App. 08/722,393
Apparatus and method for mass flow control of a working fluid
Inventors:
Roy M. Yabuki, Virender Jain, Richard L. Kenyon, Michael Nolan
Patented Case
View Patent ↗
Granted: Mar 2, 1999
Filed: Sep 30, 1996
Inventors
Roy M. Yabuki
Virender Jain
Richard L. Kenyon
Michael Nolan
Assignee (at issue)
Parker-Hannifin Corporation
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.