Granted Patent
Utility
US 4,928,231 · App. 07/352,602
Apparatus for forming flow-map images using two-dimensional spatial filters
Inventors:
Barry F. Hunt, Alwyn P. D'Sa, Paul A. Magnin
Patented Case
View Patent ↗
Granted: May 22, 1990
Filed: May 15, 1989
Inventors
Barry F. Hunt
Alwyn P. D'Sa
Paul A. Magnin
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.