Granted Patent
Utility
US 4,903,529 · App. 07/254,650
Valve system analyzer
Inventor:
James Alasdair Robert Hodge
Patented Case
View Patent ↗
Granted: Feb 27, 1990
Filed: Oct 7, 1988
Inventor
James Alasdair Robert Hodge
Assignee (at issue)
Westinghouse Electric Company 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.